My iMac has only 3 usb ports, but I need four.

My external hard drive (Timemachine), my keyboard, my power supply backup (APC UPS), and my usb hub are all supposed to be connected directly to the iMac. How do I do this (short of getting a wireless keyboard)?

steve359: I've got external powered hub with adequate space. Problem is that Apple recommends that Timemachine and keyboard both be directly plugged into iMac. APC recommends that UPS be directly plugged into iMac. That leaves everything else which goes through the hub. I need to get a new external HD (my Iomega died). If anyone knows of a good external HD that allows connection by usb and has an auxilliary usb port so my hub can go through that, it might work. The Iomega used firewire so it didn't compete for iMac usb ports, but I'd prefer to have a usb HD.
seventy one: Rechecked. My iMac has 3 usb ports and two firewire.

Similar Messages

HT3258 I have installed Mac 10.8 having issues w/HP 2605dn printer. I have done the updates as required still have issues getting it to print on network. It prints fine on USB port, but I need it networked, what gives?

I have installed Mac 10.8 having issues w/HP 2605dn printer. I have done the updates as required still have issues getting it to print on network. It prints fine on USB port, but I need it networked, what gives?

Thanks for your reply, this puts my mind (what's left of it) at rest. Now to sort out the new printer broblems since installing oldMags

Emachines eMD620-5777 has only 2 USB ports

This is a new laptop Best Buy began selling on 11/1/08. The unit description in the Best Buy's web site (and also on the emachines website) says that this unit has 3 USB ports. In fact, it has only 2 ports (although there is plenty of room for a third to have been installed). I only realized this when I unpacked the unit at home.
But with its decent specs and 14.1" screen, plus an introductory price of $299, it beats out the netbooks with their tiny keyboards and smaller screens - plus, it has a built-in optical drive. A low cost traveling companion.

Hi Befair!
What a great deal for a basic laptop and thanks for
the notification! I am already checking
into this USB port listing. Be aware,
though, that we get our information directly from the manufacturer (which lists
as 3 USB on their website). We certainly want to be accurate and will make a
correction if needed. Could you help me out by looking at the back? I just confirmed by calling a few stores and
there are two on the right side and one on the back. Let us know either way, thanks.
Matthew|Community Advocate | Best Buy® Corporate
Visit our Channel on
Private Message

Mid 2011 Macbook Air - Yosemite keyboard and trackpad stopped working, the only button that worked was the power button, only one USB port works.

I have a Mid 2011 Macbook Air.
Upgraded to Yosemite last week.
Three days ago I was using my Macbook Air for the first time since upgrading to Yosemite. I had been using my Macbook Air for approximately 30 minutes, I was using safari and the keyboard and trackpad stopped working (would not respond). The only button that worked was the power button.
I rebooted and they were still not working. I plugged in a USB mouse and external USB keyboard, only one USB port would work (the Left USB port if looking at the screen) so I had to swap between keyboard and mouse.
After logging in there is a bluetooth icon at the top of the screen with a sawtooth line through it. Bluetooth is unavailable and the bluetooth icon is missing from the system preferences menu.
If I run a hardware test by holding D (on USB keyboard) at startup it says that no problems are found and at the conclusion of the test the keyboard and trackpad start working again. When I log on the bluetooth is working again.
I shut down the Macbook Air and when I started it again the keyboard and trackpad and right side USB ports were all not working again. I logged in using the USB keyboard and mouse and the bluetooth not available sawtooth icon had returned.
I ran the hardware test again and at the conclusion of the test the trackpad and keyboard started working again.
I have tried deleting com.apple.Bluetooth.plist and com.apple.Bluetooth.plist.lockfile from /Library/Preferences/ and tried resetting SMC and Power Functions but this did not fix the issue. The only thing that seems to work is running a hardware test - obviously I don't want to do this every time I use the computer.
I do not believe any hardware is faulty/damaged - I think it has something to do with bluetooth/Yosemite.
I do not have the Macbook with me at the moment, if you have suggestions that I can try or additional checks/info you require please let me know and I can get back to you.
Thanks,
John

Hi!
I have exactly the same problem, and I can't find any solution.
I can't even track down the root of the problem: the Bluetooth/Wifi module? The trackpad? The keyboard/top case? The logicboard?
I've tried all the usual: SMC/PRAM reset, clean install, kext cache clearing.
Any suggestion is greatly appreciated!

I will be using a HDMI cable to connect an Apple TV box and a Comcast cable TV box to my TV. My TV has only one HDMI port.

I will be using a HDMI cable to connect an Apple TV box and a Comcast cable TV box to my TV. My TV has only one HDMI port.
To do this I will need a 2x1 HDMI splitter or a 2x1 HDMI auto switch (preferred).
?Is there any Apple TV HDMI port voltage?
When using a HDMI auto switch to connect two devices to a HDMI TV, the
Auto switch cable box only works for components that do not output continuous voltage over HDMI port when turned off.
Do you know of any other solutions? Componets? Actual expierances?
Full text below.
Cable : HDMI switches expand the number of available HDMI ports on a high definition television allowing connection of cable boxes, Blu-ray players, and game consoles. A side benefit is that cable clutter is also eliminated by running a single HDMI cable to your HDTV from a switch and relocating the HDMI ports to a concealed location. The problem with most HDMI switches is that you have to either get up to push a button, or hunt for the remote control, to switch sources. The true mark of any great switching component is an ability to perform its function and remain transparent in its operation. This automatic HDMI switch is a plug-and-play away from offering everything you are looking for in an HDMI switch. Select a single output from up to three devices for signal delivery to your HDTV. Smart operation provides complete control for connect-and-forget operation. Powering on a device gives it output priority over the other devices. By powering down the device in use, output priority is returned to the last powered on device. Note: Auto switch function only works for components that do not output continuous voltage over HDMI port when turned off.
Here is a typical HDMI 3-in 1-Out HDMI Auto Switch
http://www.google.com/products/catalog?q=hdmi+auto+splitter&rls=com.microsoft:en -us&oe=UTF-8&startIndex=&startPage=1&rlz=1I7GGLF_en&um=1&ie=UTF-8&tbm=shop&cid=1 0340892278237558532&sa=X&ei=fTPmTtOiHuXq0gGc3sHfBQ&ved=0CHsQ8wIwAA#
Thanks for any help. Sincerely,
HDMI auto switch?

Hi Erico,
I tried what you said again but without success. I even updated the driver so that that audio driver is the same as the graphics driver i.e.. NVIDIA but this has not helped either:
Do you have any other ideas?
Many many thanks,
Louise

How can I get two hard drives connected to the Airport Extreme. There's only 1 USB port.

I believe I want to use TWO USB Hard Drives with my Airport Extreme, but it seems there is only 1 USB port.
I am currently using that USB port for my backup external hard drive (works with Time Machine). But now I have decided I want a common hard drive for music, photos, etc. for the two Macs in my home to share. I read that you do that via the same port.
What should I do? Is there a way to use 2 hard drives - a common shared and one for time machine?
Please advise and thank you!

singer777 wrote:
I believe I want to use TWO USB Hard Drives with my Airport Extreme, but it seems there is only 1 USB port.
Use a (powered) USB hub.
I am currently using that USB port for my backup external hard drive (works with Time Machine).
I hate to have to tell you this, but backing-up that way is unreliable and not supported by Apple. See: Using Time Machine with an Airport Extreme Air Disk.

Solution to only TWO USB ports, please

I should have paid more attention when I bought my Mac. I didn't realize there were only TWO USB ports on board. My job requires me to be mobile, and on any given day, I could be using up to 10 USB ports. I know they make hubs, one of which I've tried, but it didn't work. Does anyone recommend a particular brand of hub that's RELIABLE and can handle both input and output?
I'm stunned that Apple would have just 2 USB ports. My old Dell had 4, and if I remember right, I could have specified even more when they were building it.
Diane

Yes, that's the ExpressCard/34 port (labeled in this linked image). The ExpressCard port also be used for media card readers, WAN (wireless broadband) cards, etc. Good for a USB expansion hub because it's a small form factor and won't take up one of the two existing USB ports.

New imac doesn't locate old imac hard drive via usb port

I have an old iMac from ~2006 that recently stopped reading the harddrive. I pulled the HD out and connected it to my new imac via USB port but I can't locate it. The HD spins/powers up so I know the connector is strong enough to supply power. We connected it to my husband's PC and he can see that there is a harddrive but cannot see any files to read. He even tried Catacombe to try to read files but it didn't work. My first issue is how can I locate my HD on the new mac? But the main issue is how can I pull data/pictures off of the old harddrive and import them to my new computer. I don't hear any clicking sounds from the harddrive so it seems to be working. I can't reformat it because I don't want to lose the pictures on it. I don't need the old harddrive to work/write. I just need to pull the information off of it. TIA.

I was not familiar with catacombae , but now I am .
You have a problem with either a corrupt file system on the hd or a hardware problem with the hd. I'd say try mounting in disk utility. Try reparing filesystem on hd. Try one of the disk repair utilities. Some have a free trail that let's you know if they can do anything. You pay to get the data. Seek profession help. Pay $$$.
How to mount with disk utility.
Repair the file system. see repair disk button on lower right.
here are some more data recovery apps. I left out a few & am posting my complete list.
Perhaps Disk Warrior will be of some help:
http://www.alsoft.com/DiskWarrior/
"Stellar Phoenix Macintosh - Mac data recovery software, recovers data from damaged, deleted, or corrupted volumes and even from initialized disks."
They have a trial version, so I guess you can see if your data can be recovered...
http://www.stellarinfo.com/mac-data-recovery.htm
"Data Rescue II is the best data recovery software on the market for recovering files from a problem hard drive. Data Rescue II works when other tools fail. Data Rescue II is also completely safe to use since it does not attempt any risky repairs to the drive while its scanning."
http://www.prosofteng.com/products/data_rescue.php
FileSalvage is an extremely powerful Macintosh application for exploring and recovering deleted files from a drive or volume. FileSalvage is designed to restore files that have:
-- been accidentally deleted.
-- become unreadable due to media faults.
-- been stored on a drive before it was re-initialized/formatted.
http://subrosasoft.com/OSXSoftware/index.php?main_page=product_info&products_id= 1
"TestDisk is a free data recovery utility. It was primarily designed to help recover lost data storage partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software, certain types of viruses or human error (such as accidentally erasing a partition table)."
http://en.wikipedia.org/wiki/TestDisk
Wondershare Data Recovery for Mac
"Recover lost photos, video, documents, email and archive files from any Mac-based hard drive or external hard drive, iPod, USB drive, SD card, digital camera, mobile phone, and MP3/MP4 player, due to accidental deleting, formatting, virus infection, improper operation, unexpected power failure, and other unknown reasons. Also, iPhone recovery allows you to recover lost photos, videos, SMS, contacts, note, calendar and call history from iTunes backup file. With the free trial, you can preview all your recovered images, videos, music, documents and archive files prior purchasing this Mac Data Recovery."
http://software.bigbigsoft.com/data-recovery-mac

In the garage I have a Netgear Router. it is connected by a ethernet cable, I have a 1tb drive that I want to use there. On the drive there is only a USB port. on the Netgear there is only ethernet ports. is there an adapter that will work for that?

In the garage I have a Netgear Router. it is connected by a ethernet cable, I have a 1tb drive that I want to use there. On the drive there is only a USB port. on the Netgear there is only ethernet ports. is there an adapter that will work for that?

It's not that simple. You need a "smart" device to connect a hard drive to, like a Time Capsule, or another computer, or an Airport Extreme/Express that was made to share a drive, or some other brand router that has a USB port for sharing a drive, etc.

Itunes on new iMac has only two albums

my new iMac has only the two most recent acquisitions, one of which is the U2 album. I had the same problem with new iPhone 6 back in october but can't remember how i fixed it. Same with iBooks, which shows two old purchases, but none of the recent downloads.

smwknits wrote:
my new iMac has only the two most recent acquisitions, one of which is the U2 album. I had the same problem with new iPhone 6 back in october but can't remember how i fixed it. Same with iBooks, which shows two old purchases, but none of the recent downloads.
Did you copy you entire /Music/iTUnes/ folder from you old computer to /Music/ on your new computer?
When you get a new place to live, is it magically filled with all your belongings?

My iphone5 wont charge with usb port but works fine with wall plug... Infact computer. Doesn't recognizes the iphone

Battery not charging with usb port but works fine with wall plug.. So the prob is computer is not detecting the iphone5 . This problem started after upgrading to 6.1.3 version

Try to see what happens on another computer. If it works on another computer, the issue is not at the iPhone.

HT2188 i just upgraded my iphone 3gs to ios 6 not sure if it updated but now when i turn on my phone it says automatically that i need to connect it to itunes using the USB port but when i connect it it comes up as new hardware and cannot find a program/s

i just upgraded my iphone 3gs to ios 6 not sure if it updated but now when i turn on my phone it says automatically that i need to connect it to itunes using the USB port but when i connect it it comes up as new hardware and cannot find a program/software for my device even though i have the latest itunes on my computer. i have tried reinstalling itunes but it still cannot find my phone and now i cannot use my phone as it is stuck on the sync to itunes screen

Have you downloaded and installed the latest version of iTunes from here:
http://www.apple.com/itunes/download/

ITunes said my iPod Nano 4G is corrupted when it's in one USB port, but not in the other.

iTunes said my iPod Nano 4G is corrupted when it's in one USB port, but not in the other. Is the port faulty? Windows 7 PC

Could just be a loose connection or that the cable itself is going bad. There are a number of factors that could play into this scenario.
B-rock

TS2634 My problem - when syncing and error messages comes up: iTunes could not sync calendars to the iPhone because an error occurred while margin data." I've tried turning the phone off and back on, & tried both USB ports but get the same thing. What

My problem - when syncing and error messages comes up: iTunes could not sync calendars to the iPhone because an error occurred while margin data." I've tried turning the phone off and back on, & tried both USB ports but get the same thing. What can I do next since it doesn't give me even one clue as to what the error would be?

Before I started to resync calendars one by one as suggested in the troubleshooting article, I remembered something that came up in a sync when I first attempted : a 'which one do you want to keep' message about a repeating calendar event, which came up with three options, one from Calendar, and two from iCal on the phone. I deleted that event, then went through the calendar resync one by one, and all seems OK now.
In Music there is a way to find 'ghost' items that show up as grayed-out on the menus, so that you can try to reassociate or delete them. It would be nice to have a similar way to work with Calendar!
Thanks for pointing me to the right article.

I'm trying to update my iPhone and it's connected to my computer through the usb port, but my iPhone is still saying to plug it into iTunes. How do I fix it?

I'm trying to update my iPhone and it's connected to my computer through the USB port, but my iPhone is still saying to plug it into iTunes. How do I fix it?

This is what my screen looks like.

My iMac has only 3 usb ports, but I need four.

Similar Messages

Maybe you are looking for