Airport Card Model# BCM94321MC

I recently installed this card with the bluetooth card and when I was finished witht the install my Mac Pro 2006 3.0ghz will not boot up at ALL. Just a blank screen and the intro chime does not sound either. Can anyone help me please with this issue. Thank you.

Intel-based Macs: Resetting the System Management Controller (SMC)
many here swear by:
Remove AC power cord.
Press and hold the power-on button for at least five seconds to completely drain power capacitors
Restore AC power cord. Wait a quarter minute.
Power on.

Similar Messages

Whats the airport card model of the airport base stations

I have an A1026 airport card from an old ibook G4 that I'm not using. I've seen at ebay some airport base stations without "airport card" is it possible to install my A1026 on an airport base station or they have different cards ?

The A1026 Airport Extreme card was used in the "saucer shaped" Airport Extreme Base Station models.
My advice - don't throw away money buying one of these base stations off EBay. The Airport card inside them was probably cannibalized for a reason - because the card may have been the only thing inside the base station that still worked properly.

Original Airport cards and e-Bay

I have a 17inch flat panel iMac, 800 mhz speed and am thinking of going wireless. I know I need an original airport card for my computer, NOT the airport extreme. I have been searching on e-Bay and found various sellers with a huge difference in prices. My question is: are there different models of the original airport card? One vendor lists an airport card model # M7600LL/A for a high price, but in the information it lists my computer as one of the models this card will work with. Another vendor has an airport card model # M7600LL/E for a much lower price but the information on the card's compatability is rather sparse. Are they the same card just with a different price? What is your advice about buying an airport card from e-Bay in general? I will also need a wireless router and have my eye on a Linksys model that a few of my friends have in their wireless networks and they recommend it highly. Any thoughts on that area?
17 inch Flat panel iMac, 800mhz Mac OS X (10.3.9)

Basically the difference between the two is one was for American market I believe and the other the European market.
Both should work fine.
Original Airport Card Alternatives
http://www.ifelix.co.uk/tech/1030.html
A Mac with an original Airport card can connect to any wifi certified 802.11b wireless network (or 802.11g in backward compatible mode).
Out of all the different wireless routers I have used, I have found my Airports to be reliable and easy to setup.

Airport card compatiblility

hey,
just bought the new mac pro xeon 2.66. and wonder if i can use the airport card that was on my old machine, a power pc g4 titanium laptop. (it´s an airport card not an airport extreme one but i kept updating the software... don´t know if it makes any difference...).
help!
thanks!
; ) anne

Hello Anne-Laure,
This is the iPhone forum. You may have better luck with your Mac Pro inquires in the Mac Pro forum.
To quickly answer your question the Airport card for the Mac Pro was specifically designed for that computer model meaning any previous airport card models can not be installed in the Mac Pro computer and the Mac Pro's airport card can not be installed in a different Apple computer model. Also the Mac Pro's airport card is extermemly difficult to install yourself and therefore must be installed by an Apple service technician during manufacture.
Hope this helps you out!

I have a Mac Pro 4,1 quad core intel Xeon running mac OSX 10.6.8 and I have just moved studios and now need to use the Internet wirelessly but there's no airport facilities on this model can anyone tell me what model of airport card I would need for this

I have a Mac Pro 4,1 quad core intel Xeon running mac OSX 10.6.8 and I have just moved studios and now need to use the Internet wirelessly but there's no airport facilities on this model can anyone tell me what model of airport card I would need for this mac

Instead of getting a wireless card for the Mac Pro, you might want to consider getting an 802.11ac wireless bridge device that would enable you to connect more than one device to it by Ethernet cable and to eventually take advantage of the faster 802.11ac wireless standard.

Airport card - will it fit an older model iMac?

in order to save me running another ethernet cable to add my old G3 400mhz imac (summer 2000 model) to my home network, is it possible the airport card that resides presently in my Intel Core2Duo iMac (2.16 ghz) would physically fit in the G3?
Airport is turned off on the Intel iMac (it is hardwired to wireless router) and i could use the wireless option on the G3.
I want to ask before attempting removal and disturbing delicate internal components.
Thx in advance

Sorry, your newer iMac uses an AirPort Extreme Card, and your older iMac uses an AirPort Card and requires a special adapter. You can't use the newer card in the older iMac.

What is the model number for the Airport Card?

The Airport card in my late 2008 unibody macbook has broken and I'd like to buy another online, what is the part number?

Welcome to Apple Discussions.
Click on the Apple in the upper left corner of the screen, then About this Mac, then More Info, then find Network, and click on AirPort. That will give you details.
Why did you conclude that the card itself is broken instead of just a network configuration problem?

2006 mac pro 2.66 in need of an airport card!

Hi Does anyone know which airport card or cards, as well as bluetooth, will work in an 2006 mac pro? I have read that MA688Z/B is the proper card. I have tracked down a MA688Z/A: http://www.macproonline.com/Mac-Pro-Tower/Mac-Pro-Tower-Parts/Mac-Pro-Tower-667M hz/Apple-AirPort-Extreme-p5636018.html
Found this on Amazon: http://www.amazon.com/Apple-Airport-Extreme-Bcm94321mc-802-11n/dp/B004OHOTJS/ref =sr13?ie=UTF8&qid=1300723614&sr=8-3
Can anyone verify which airport card to use for a 2006 mac pro model?

Hi cmotta12,
You might find this thread (Purchasing/Installing Airport Extreme card for Mac Pro 1,1 (2006) of interest:
http://discussions.apple.com/message.jspa?messageID=12830939#12830939
One important thing to note is that the official Apple Airport Card Wireless Upgrade Kits come complete with the two micro screws which are needed to install the card.
These screws are not readily available, so ensure that they are included when you buy your Upgrade Kit.
Regards,
Bill

Broadcom Airport Card not working

My original airport card (Macbook 1.83 GHz Intel with Snow Leopard) was cutting out when warm so I purchased a Broadcom BCM94321MC 802.11n Mini PCIe WLAN Card 0NJ449 which is theoretical compatible and replaced the original a/b/g card. The computer cannot find any wifi sources. Has anyone out there performed this kind of card change with problems?
Do I need some kind of new driver for this Broadcom card? Is this the wrong card? If not perhaps the card isn't malfunctioning unless there is some kind of connection problem. Is there any problems normally when you replace the card or reconnect the antenna wires?
Thanks for any help you can offer.

Located with a popular search engine, this site will tell you which model you have either by serial number or model number (obtainable from About This Mac, More info, in the menu bar at the top of the screen--> http://www.powerbookmedic.com/identify-mac-serial.php
Here's another site with information about the various models --> http://www.everymac.com/systems/by_capability/mac-specs-by-machine-model-machine -id.html
If your processor is a Core Duo, you have a MacBook 1,1.
If it's a Core2Duo, then you have a MacBook 2,1.
If you have a 2,1, then you might need to download the additional updates in order for your computer to use the /n capability of the new card you installed.
Details from Apple here --> http://store.apple.com/us/product/D4141ZM/A

What is needed to network 2 computers using Airport card

I know I need an airport card in my eMac, but is there any other cards that have to be in the computer? I want to network my eMac with an iMac using a DSL line. The eMac will be downstairs and the iMac will be upstairs. I'm waiting for delivery from Apple of the iMac. It has everything built in that is needed to network but my eMac doesn't. To make my eMac wireless is all I have to buy is an Airport Card and a Wireless Gateway for the iMac which is the computer connected to the DSL modem and Wireless USB adapter with connects to the eMac? What type of Airport Card do I need to buy for my eMac (model #'s etc.) It is the card that inserts above the super drive in the front of the computer. Is there any software that is needed to install Airport?

I am also doing some configuration changes (we have one Imac and two eMac's)
but one eMac does not have a airport card and is hardwired (ethernet) to the high speed cable modem then a apple airport. One Imac and the Emac with a airport card work fine, it is a bit tricky finding the correct airport card (or airport extreme card if you have a ATI graphics card (use about the mac/system profiler then click on more to see if you have a graphics card (which affects which airport card you need, there are alot of resellers on the net so you should find what you want.
If in doubt there is a free program mactracker which provides data on every mac made (available off off versiontracker.com (free site just register) it will guide
you on the type of card needed. I was quite amazed at the amount of different spec eMac's made in their relativealy short history.
Macwireless.com does sell eMac cards (for two models) but also antenna type
or flash drive appearing USB based wireless connectors that may help.
I found the mactracker program helpful (alot) as alot of web sites provide some vague info and I would hate to se you get stuck with a non returnable card.
The actual card install does not look hard (its done through the cd rom drive door.
I am not sure why we did not get a airport card for ours when we bought it.
Wish I did as it would have saved some $ (maybe) and surf time making sure I find the right one.
We did have a antenna wireless antenna for a "green" Imac (long gone) and it ran on OS9 but it was finicky when we had the airport base station upstairs
and the Imac and antenna in the basement (about 50-75 feet)
Best of luck
Hope this helps, I am not a expert, the serial number on the cd drawer will
nail down the model you have and what you need.
We have been working adding a laser printer and airport express and the two macs with cards work fine but the Emac with no card can not be set up yet. The laser printer will sure save on ink!

How do i know an airport card is installed & not working or not installed?

My Mac details are:
Model Name: Mac Pro
Model Identifier: MacPro1,1
Processor Name: Dual-Core Intel Xeon
Processor Speed: 2.66 GHz
Number Of Processors: 2
Total Number Of Cores: 4
L2 Cache (per processor): 4 MB
Memory: 2 GB
Bus Speed: 1.33 GHz
I've always just connected to the internet via an ethernet cable to my router/modem, but now I don't want the long cord going from the phone line to the office within the house. I have a Airport Express and was wondering if I could set this up in the lounge and connect my computer/laptop/stereo etc.
To do this do I need to have an airport card installed. If so, which one and are they easy to instal?
Appreciate any help.
Cheers
Message was edited by: mindgrind

If you remove the side door and look down at the mother board, you can observe if the airport card is there. You can also use ASP . There are kits for the bluetooth and airport card available. Installation is not difficult. The difficult part is finding the connector wires. these are tucked at the top border of the mother board. The other issue is which lead goes to which connector. You can find the answer on the internet, just Google it.
Bottom line on the original Mac Pro the wireless reliability with that card is short range. Must have not too much interference.

Airport Express (Model with 802.11G +54MBPS Mac/PC and Set Up Issues

Hi,
We have a 4 Mac and 1 PC Household. Cable Internet Service by Roadrunner.Cable model (owned) connected to a D-Link 802.11G wi fi router (by ethernet from cable modem)in the family room , then out to a Imac (the half moon base and LCD screen with a airport card also in the family room and the closet computer to the D-Link
router, (we did add a D-Link antenna to the router ? about 10 months ago (a D-Link ANT24-0700 (Version 1.2)and a HP 4 in 1 printer attached via USB to the Imac
,a eMac 1.25 ghz 1Gb ram with airpot card also connected wirelessly (no printer attached on the same floor but in a ajoinging room about 20 feet from the Router, and another eMac 1.0 Ghz 1Gb ram with airport card in the upstairs part of our house (a bedroom) and no issue with Internet connection (it has a Epson 3in 1 printer attached via USB, and a MacBook Pro with 802.11N wireless card in side , bought for a Christmas/Birthday Present and also for college.It to has no issues with the Internet where ever it may be in the house. Our sole PC a HP tower with a added D-Link WDA -2320 Range Booster Desktop Adapter (802.11G) and we added a D-Link Antenna same model as the other a ANT24-0700 to help with Internet access which it did as well as adding some ram to increase page loading time etc. It does not have a printer attached. I will get to the Topic Area now
The Airport Express. I was not involved in the set-up as I was laid up due to a bad back and post major knee surgery , But I always (especially recently) wondered why the light was amber and blinking. I read through the manual and also
Apple.com support and MacFixit.com (which is under construction and moved to part of Cnet.com)and then went to the Airport Express Discussion area (sorry for being so wordy) I need a Twitter account to post!) We have a network name for the D-Link and the computers all were added and it also supports a Xbox 360, a Sony PlayStation 3 and a Nintendo Wi (in online use without issue) but..
A network was also as it appears to myself) for the Airport Express and under the half moon bars showing connection strenght (there is our D-Link network "phoenix" with security protection WPA2 I believe) as I have set up the router, We had a Apple Base station prior that was ? 802.11B (a half moon white unit) still have it in the box ) So for normal daily use, checking e-mail and internet use all of the computers use the "phoenix" or D-Link supported Router 802.11G
and The other network calld Apple Network with numbers and letters after it (and hopefully security) password is unknown , The Airport Express is set up connected via USB to a HP B&W laser printer which has saved quite a bit of money on ink, To utilize that printer you must switch from "phoenix" The D-Link router network to the Apple Network (followed by letters and numbers) The Imac and the eMac in the family room and a ajoing room (after switching to the Apple Network
can than print to the lasr printer. The eMac upstairs and the HP Windows XP Professional software can not print to the laser printer (yet the HP PC shows it as a individual network and a strong signal, equal to the Internet connection from the D-Link, and the eMac (after switching under the half moon (not the proper name I am sure) to get to the Apple Network to print , it will not print, yet it shows a 5 bar signal, same as the D-Link connection. I do believe we have two seperate networks (but do not understand why the two Mac's in the family room can print to the laser printer by simply switching networks and then file and print. ** One other 9probaly major item is that it states to set up the Airport Express with a Mac With OSX 10.4 or later (at the time of set up, we had the Imac and two eMac's all running Panther OSX 10.3.9 9which they continue to have installed) We obtained the HP Tower and Monitor and HP 4in 1 printer ust before Christmas in 2008 and the MacBook Pro in Mid December 2009 (current model and running Snow Leopard 10.6. The HP Tower runs Windows Xp Professional (Service Pack 3) so the MacBook Pro which is much more mobile , could be used to do the set-up, or the HP Tower coulf be moved temprarily, I do recall if Router changes (at least with The D-Link You need to be connected by Ethernet to the Mac
that would be doing the set up/configuration of the router (and it runs OSX 10.3.9 and is a older Mac (with 80Gb Hard drive that is partioned for OS9 and OSX as well , it is under a Ghz processor wise and less than 1 Gb of ram as the last ram slot required a seal to be broken and 256mb of ram (?) could be added
it has 768 mb of ram but knock on wood running well. We use Lacie external drives
on the Imac and both eMac's and need to get external drives for the HP PC as well as the Mac Book Pro (15" screen)
I apoogize if I repeated myself, and rambled but I wanted to (in one post) to explain our set up and network configuration
Questions
1) if indeed it is that the two networks is true and a set yp that is not correct
can the Airport Express be configured without opening up the router (when ever that happens it seems one computer is unable to get online and each time its a differnt one a Mac or veen the PC
The PC under My Computer and Networks clearly shows the wto distinct and seperate netwoks with strong signals and the distance is not far (it is through a floor as the other emac and the PC are upstairs and cabling by ethernet is not a option
2) If I need to open the router would I add the Airport Express as a client as if it was one of the computers or gaming systems on the network? (adding the Mac adress or IP address (not sure how you find the Mac address) and its been while since the router was opened up for any additions or work on it.
3) would it be on the same channel as the router or not ?
4) Hopefully with proper configuration the light will stay on (and green) on the A/E and the eMac and HP PC will be able to print to the laser printer. Currentlt
when anything needs printed from the PC its put on a Flasg Drive and plugged in tothe Imac and the the Apple Network is selected and data printed, The eMac upstairs has the option of using the attached Epson 3 in one or doing the Flash stick work around.
I would be verya appreciative if some one took a look at the set up above and advised me of what is right, what is not right* and what to do to fix things up
I would imagine after proper set up, delete the Apple Network from the PC and eMac upstairs and ? all of the computers as we should have one base station (the D-link and the spoke (the A/E connected by UBS to the A/E (it may be ethernet but the cable connection from the A/E to the HP laser printer is correct (the rest of the A/E set up ... Please , tell me where it is and where it should be
and ? any idea why we can print to the laser printer down stairs and not up stairs ? it did mention printer set up with Panther as possible, page 43 of themanual we have un chaper 5 Tips and Troubleshooting (under whn your printer isn't responding) (we do not have the interfereance listed in the manual,
our phones are land line, one 900 mghz and the others 5.8 ghz
It is possible to move the A/E and laser printer if that would help the two computers (desktops) upstairs) bt the distance is way less than 150 but their is a floor and ? duct work (metal ) but I think here is a place to stop typing and let some of the experts on the discussion forums take a look.
one lst note (as the lap top will be going off to college in the fall (runnning Snow Leopard, and the other 3 Mac's run Panther OSX 10.3.9 should the HP PC windows Xp Professional be the computer to set up the air port express and the Airport Utility proram installed & would this conflict with the current Router (set up by a Macc running OSX 10.3.9 (Panther) i.e (should both set ups be on the same computer?) but actually aThe D-Link is OSX10.3.9 compatible (and 802.11G) and set up requires ethernet connection to a Mac (You type in the numbers and . etc and password as administror and you are in, or should the admin be on the same cpmpuer for the router and A/E ?
(and considering a Airport Extreme Base Station as well as dual frequency simulataneus and 802.11N (for the laptop now) and future, or wait. The 802.11
in theory would broadcast farther..?? even if computers had 802.11b(our Mac Desk tops and the PC 802.11B card
Thanks Again!!!
Many, Many Thanks
amnienttales

William Boyd Jr.
Hello again,
D-Link Router is model DGL-4300 (along with a D-Link ANT24-0700 Omnidirectional
7dbi Antenna . Our Cable Internet ISP (Roadrunner) provides consumers with dynamic ISP address's . All Mac's have Airport Cards and The Hp Tower XW4550 has a D-Link Rangebooster G Desktop Adapter WDA-2320 (also with a D-Link ANT24-0700 Omnidirectional 7 dbi Antenna (the PC OS is Win XP Pro Service Pack 3) The 3 desktop Mac's run OSX Panther 10.3.9 , The 15" MacBook Pro OS is OSX 10.6 Snow
Leopard (not sure what is after the .6 (right now) D-Link's website is
http://www.dlink.com , I have configured this router multiple times in the past.
also added as clients on the network (Utilizing the D-Link Router) are a X-Box 360, Sony Play Station PS3, and a Nintendo Wii all of which have on line ability
and enables online video game play with any one online.
As mentioned prior the Airport Port Express is Model A1084 Part No. M9447OLL/A
which is USB conected to a HP LaseJet B&W , model 1020 and some how the two computers near it can switch to the Airport Express Network from the D-Link Router based Network and print wirelessly to the A/E connected LaserJetPrinter
I realize I will need to reconfigure the D-Link Router and add the A/E as a client. I will try first to use the Airport Utility and see if I can do anything
Utilizing it (adding it to the D-Link network, I think its unlikely but worth a try but* the password is unknown but I have a few guess's as to what it may be.
I do have the necessary admin and network paswwords to cconfigure the D-Link Router,
1) * If the the A/E Utility experiment fails and I need to re-configure the router * do I need to (as per the Airport Express Set Up Guide (Use a Mac with OSX 10.4 or later or a PC with Win Xp Home or Professional (have a desk top PC that has the specs) and The Mac Book Pro meets the Mac Spec's)
If I can not get a password to work on the A/E I would reset it using the reset button
And before plugging in the A/E , connect the appropraite cables in our case a USB cable to the LaserJet Printer then plug in the A/E
2) I would then connect by Ethernet from Either the Mac Laptop or The PC to the D-Link router (if not the router will not set-up correctly)
3) The one question that puzzles me is that we are not using the A/E as a base
but a client
in two sections(Using Airport Express , connecting a Printer via USB
and use Airprt Utility to create a new network or join a new newWireless computers using Mac OSX 10.2.7 (Tiger) or later or a PC with Windows XP and it then goes in to the steps of ising the printer for both a Mac and a PC (using Bonjour on the CD that came with the A/E (this appears to contradict needing to use Mac OSx 10.4 or a PC with Win Xp set the A/E up for use as a printer
(joiing a new network or existig one)
And in Chapter 5 Tips and Roubleshooting= Your Airport Express Status Light Flashes amber & Your Printer is not responding (it is flashing amber and the printer does not respond to the two computers upsstairs (one Mac running OSX 10.3.9 & One PC running WinXp and its states to make sure the printer is selected
in the Printer list o client computers, to do this on a Mac using OSX 10.3 or later , open Printer Set Up Utility and follow steps and if a PC with Windows XP , Open Printers and faxes and then follow steps
in Closing ? can I configure the A/E Utility with a Mac using 10.3.9 as above or
? Per Chapter 1 Getting Started use a Mac with OSX 10.4 or later or a PC with Windows Xp Home or Professional
Perhaps I am taking the tips and trouble shooting and Printer Set up out of context or does the getting Started Computer specs contradict them or are they
for use if the A/E was going to be a Base Station and not a client..
Will keep at it,
ambienttales

Airport card is not recognized by G3 iMac

I recently acquired a G3 600 MHz iMac, running OS X 10.4.11, and I want to join the iMac to my wireless network. So I purchased an Airport card ( tested card on a ibook running 10.4.11 and it works fine.) and seated it in the G3 iMac. For some reason the iMac does not recognize it one bit. I checked profiler and System Preferences and no sign of an Airport Card. I then opened the iMac and reseated the card, I even changed out the adapter with another adapter I had. After researching online, some people suggested an archival OS restore. Although I would try that but unfortunately I do not have any of the original install disks. So my question is: does anyone know how I can make the os recognize the card?
Greatly appreciate the help.

There are two versions of the original AirPort card, and their identify can be determined using the information below.
The poster you replied to may be referring to this post quoted below, though even if he had the initially issued card, it would not explain why the card is not recognized. Though incapable of supporting advanced security, it would otherwise be recognized and operate as expected if seated properly, as you have described.
The original AirPort card was equivalent to a WaveLAN Silver card, and supported only 40-bit WEP or 64-bit encryption, and did not support WPA.
The original AirPort Base Station which shipped with these cards on board was limited to 10 clients, had only a 10BbaseT LAN port, and supported only 40-bit WEP. Later cards which looked physically identical, supported 104 bit WEP, or 128-bit encryption, as did the AirPort Base Stations which included them. This second card, also manufactured initially in the Netherlands for Apple by AT&T's Lucent unit—later know as ORiNOCO—was equivalent to the WaveLAN Gold card.
The 661-2219 part number is distinguished by the M7600LL/* marketing designator screened on the label, as well as engineering revision part number 825-4889 and worldwide procurement part number 630-2883. EEE code G3G is embedded right-most in the last four characters of each part's serial number. *This character is typically A, B or C.
The 661-2569, on the other hand, is distinguished by an M7600LL/D or later marketing designator, engineering revision part number 825-5620, the same worldwide procurement part number 630-2883 and typically the phrase '128 bits' along the lower center of the label. EEE codes LH8, M6Y or QAC are embedded right-most in the last four characters of each part's serial number.
While a procurement number generally changes when a service part number change is made, this product did not, as Lucent remained its sole supplier, the 'change' to the card involved different firmware and not a physical change to the product, and Apple personnel largely considered them equivalent, though they were and are not.
Graphite AirPort base station models initially used the M7600LL/A, B or C cards, and was itself designated the M7601LL/A and later, the M7601LL/B. Both base stations were also designated as 661-2265 whole unit service replacement parts. Every card we've ever seen in a Graphite base station was a 661-2219 and was marked as described above.
Apple did not adequately document many of these parts and there applications at the time they were still in use, and all have disappeared from their inventory—except in limited cases—as has much of what existed for documentation. Given their personnel changes over the years, it's quite likely that no one there now can recall the subtle differences or properly identify these products. Once there are designated vintage, then obsolete, they drop quickly off of the radar.
While any properly functioning iMac compatible AirPort card properly mounted in a 076-0804 adapter would show up in the System Profiler without the antenna connected, the performance of such a card would be poor to abysmal.
I believe that you are completely correct when you indicate that either the adapter is not seated properly, that it is not working properly, or that the logic board is defective. The latter two scenarios are quite unlikely, though possible.

"No Airport Card Installed" After 10.5.6 updgrade...

After I installed the 10.5.6 upgrade using software update (from 10.5.5), I no longer have an airport card detected. It does not show up in system profiler either. Is there anyone that knows why this happened and how to fix it?
Thanks, Mechmess
I'm on a model MacBook4,1

I've had this issue - if you have AppleCare, call to log a support case. They will have you reset the pram, which worked for me. However, I was told it may happen again, at which time they will replace the airport card, so it sounds like there may be a known problem with the cards.

Which Type of Airport Card Should I Use

I have a Flat-Panel iMac Early 2003 G4 and I want to set it up on a wireless network. I currently do not have an airport card and I wanted to know what kind I should use the regular or extreme.

You have to determine which G4 variant you have--some use the original card and later ones use the Extreme.
Assuming you have OS 10.3 or later, Do "About this Mac..." from the Apple menu and, in the resulting window, click "More Info..." That brings up the very useful System Profiler. The first Profiler screen you see is Hardware Overview and holds your answer.
Look at the line, "Machine Model"--could also say "Machine Identifier" if you have Leopard OS, but should be the second line. If the code is "PowerMac4,2" or "PowerMac4,5" you neeed the original Airport card. If it's "PowerMac6,1" or higher, your iMAc takes teh Extreme card.

Airport Card Model# BCM94321MC

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