What usb port version do i have?

how do i determine which version usb port i have on my iMac?

The free-standing (and freeware) database, Mactracker, may be easier to use:
http://mactracker.ca/
than the Apple specs. MT is written more for the average user, yet still has full details. It also has the advantage of a consistent format. Apple's spec sheets have "evolved" their format over time, making head-to-head comparisons more challenging
MacTracker is available on the App Store but I've had a little trouble with that version. The version from the MT website works without issue.

Similar Messages

I have an Iphone 5S and used to sync it to my computer in the past without any problem, but now I can't and appears the message "usb device not recognized", and the cable is good and so the USB port. Do you have any idea what's the problem?

I have an Iphone 5S and used to sync it to my computer in the past without any problem, but now I can't, and appears the message "usb device not recognized", and the cable is good and so the USB port. Do you have any idea what's the problem?

Try leaving it plugged in and then restart the computer.
If you are on Windows this link may help but it is a bit old.
http://www.technologynext.org/error-usb-device-not-recognized-how-to-fix/

What OS X version do i have?

How do i tell What OS X version do i have?
I'm not sure on my MacBook Pro 13 inch with retina display

Choose About this Mac from the Apple menu.
(125841)

What USB Port Look like

I have been searched to find USB Port for my printer HP. I don't know what does it look like?

Not sure what your HP printer question has to do with an AirPort Express.
The USB connector jack on the back of the printer is about 1/4 inch square shaped.
A USB printer cable appears below. The connector that would plug into your HP printer is the square shaped end.

M45-S331 no history of issues... 2 right usb ports and the touchpad have stopped working.

Hi,
I'm really starting to give out of things to try to figure this out. So this laptop was bought, brought home and sat on a little table and has been handled delicately. I was happy to get it and it's never had an issue. Like the title says, now the USBs on the right side (single left usb functioning) and the touchpad have just stopped doing anything. I can't really say for sure exactly what was going on before it started to do that... I'm thinking it was working, I shut it down and maybe a day later I powered it up and noticed it probably as I was trying to log in. I have: checked connections, board contacts, drivers, reinstalled windows... so I mean at that point there's probably nothing I can do... but all seems fine with the equipment from what I can see looking at it, add in the fact that the two aren't really exactly the same so for them both to go like that is odd... I just want to know what I'm not thinking to do as far as troubleshooting it...
I don't know if there's anything else I can provide, but if there is I'll have it...
Thanks.

I'm beginning to think there's not too much more I can check. I still think it's odd that the 2 usbs and the touchpad go out at the same time.

How many usb ports does this notebook have

I wanna buy hp pavilion g6 2305tx.but the problem is that it has only 2 usb ports.But i contacted a dealer and he told me that there are 3 ports.is it true ?please give me hands on review.and is it safe to use usb hub in the laptop ?Please inform me.Thanks
This question was solved.
View Solution.

Hi:
According to the user guide at the link below, chapter 2, pp 3 - 5, there is one USB 2.0 port on one side of the notebook and 2 USB 3.0 ports on the other side of the notebook.
http://h10032.www1.hp.com/ctg/Manual/c03529460.pdf
I do not own a g6 model notebook so I cannot provide any further information regarding it.

How do I see which USB port version I have?

How do I check and see if I have a USB 1.1 port or a USB 2 port? I have been told that all iBook G4's have USB 2 ports, however I have had trouble with my USB headset and just want to make sure I have a compatible unit plugged into the correct port.
Thanks.

Hi Lyssa,
I have a Logitech USB Headset, it is a mic and headphone set and while recording in Garage Band I have been experiencing an echo on playback of my recording. I thought it may have something to do with being a USB 1.1 port and the headset being a USB 2. However if you tell me my computer has a USB 2 then I am back at the drawing board to figure out why the echo. I have tried attaching a friends USB 2 mic to my computer and it would not recognize it, hence my thought that I had a USB 1.1 port. Any advise would be appreciated.

When I am finished editing an image in Lightroom, what files or versions should I have in my database of images?

When I am finished editing an image in Lightroom, what files should I have in my Library? I start with a RAW file or a tiff scan from film. I label that "A" as the archived file. I make a virtual copy to work on in the Develop module. When I am done, I save a file as a Print file with dimensions of the print. Since Lightroom is non-destructive, do I need to save any other versions? For instance, in Photoshop since the crop is destructive,
I edit an uncropped version and do the crop when I am working on the Print version. What should I have for the most flexibility over time in Lightroom?
I use Lightroom CC on a IMAC desktop. My photos are on a separate hard drive and are also backed up offline. Im running OSX10.9.4.

You don't need to make a virtual copy before you edit the photo (this is optional, but most people don't bother as its extra work with little or no benefit). EXCEPTION: If you are doing multiple crops of the image, you would need virtual copies in that case, created after all other editing is completed.
You can't "save" from Lightroom, you can "export". (It's a terminology thing) You would need to export a photo at the desired dimensions for printing, but there's no need to retain this exported photo, you can consider it temporary and delete it once the print has been made, knowing that you can always re-create it exactly from Lightroom if you need it.
So to answer the question in your title, all you need to retain on your hard disk is your original image (and in the EXCEPTION case where you have multiple crops of the image, you would retain the multiple virtual copies in Lightroom).

Both USB ports have gotten extremely slow

I was hoping someone could help me with a strange problem that has come up lately. I have two external hard drives that I frequently move files around and have had no problems with speed rates via the USB ports before. I have a slightly older MacBook version 4,1 according to the System Profiler and two fairly new external hard drives, both 2TB WD Elements. I have been using these for over a year with no problem moving files around, crisp, not entirely fast but not incredibly slow either. I am updated all the way on my Macbook to 10.6.8 and I have searched Google high and low for an answer but I can't seem to find out a solution. The problem is that now where it used to take 3-5 minutes to copy over 1GB worth of files it now takes close to an hour. I have tried other USB flash drives, other external hard drives and all of them are this slow. I tried moving the same files, using a different computer, a MacBook Pro that is also 10.6.8 and the transfers are fine, same as they always were. I have tried resetting the SMC but that did not fix the problem. There seems to be very few other suggestions so I was hoping someone had an idea.
Thanks in advance for your help.

I also wanted to mention that both drives are formatted with GUID tables, one is formated as Mac OS Extended and the other is Mac OS Extended (Journaled). Both are slow when copying to each other or from the desktop to the external hard drive. Though the Journaled one seems faster when it is the only one plugged in. The vanilla Extended seems to be slow regardless of whether it is plugged in by itself on either USB port. Like I said above, this is not usual behavior, I have had no problems before a few days ago with USB speed.

How do I find the address of my usb ports so that I can connect a telescope to the macbook. I have tried various commands on terminal and all I get is 'directory or command not recognised'.

The telescope instruction says open a Terminal and put in ls/dev/* and other such things and all I get back is that none of them are recognised.
JeffersE

Why don't you call the telescope company for support and let them explain it to you. Usually there is software involved with those types of telescopes and if that software doesn't support Mac, it won't matter how or what USB port you plug it into because no drivers or anything will load for it.

I have used all the usb ports on the back of my iMac desktop [2009] - in one I have a hub - too many?

The longer I have had my 2009 desktop iMac, the more I am needing usb ports. I only have 3 on the back. Currently 2 are used for the 2 printers I own and the other has a 3 branch hub in it for my mouse, keyboard and card reader. I have the mouse and keyboard attached this way as the cords work better for me in my workspace. I am using one of the ports on my keyboard for my mp3 player. Now I am branching out into the computer world and have tried using a flash drive. However when I tried plugging it into the other usb port on my keyboard, I get the message that there isn't enough power to support it. Same message when I tried one of the three ports in my hub. So the only way I could get my flashdrive to work was to unplug a printer, plug in the flash drive till I was done with it and then plug in the printer again. Since I am sure that this plugging and unplugging constantly would not be a good thing, I am now contemplating getting a better hub so I could permanently have a usb hub open for my flash drive. I figure I can always use a port on my keyboard for my card reader as I don't use that very often. My question is: "If I do get a better hub to put on my 3rd port on the back of the computer, will that be too much for the poor thing?"

Generally, you should use hubs (of which the keyboard is one) for devices which don't need to get their power from the USB port ("bus-powered"). Portable drives (including flash drives) are bus-powered; printers and other larger devices which have separate power cables are not. So the printers should attach to your hub, and small devices should connect directly to the Mac.
Now, some hubs are actually powered themselves, and these are better suited for powering small devices.
There are some good options here:
http://eshop.macsales.com/search/usb+hub
Are both your printers USB-only, or can they be networked (either wired or wirelessly)? That would save you some ports.
Matt

HT1202 Hi my i pod classic has stopped sync-ing from the mac book.. I have tried two different leads from hr usb port to the i pod but it won't sync.. any thoughts ??

Hi..
My I pod Classic wont sync with my mac book pro.. It was fine till about a fortnight ago .. I have tried two different leads in both USB ports.. and when I press the Sync control it wont sync.. AnyThoughts?? I think I disconnected without ejecting at one point .. I don't know if this was a problem.
Thanks,
Dave

Does the iPod appear in iTunes when you have it connected via a USB port?
If so, have you done all the troubleshooting here?
iPod not recognized in iTunes and Mac desktop
B-rock

My usb ports have stopped working on my iMac

2 of the 4 USB ports on my imac have stopped working. Has anyone else had the same problem? Anyone know how to get them working again?
Thanks
Pammac1

Hopefully the SMC reset works otherwise it may be a Logic Board issue.
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
The 5 second timing is important to a successful reset.
PRAM RESET
Zap the PRAM
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.

HP G72 USB Ports Not Working - Battery Issue?

I recently purchased a G72-250US and found out too late that none of the three USB ports work. I have tried three different devices - a mechanical keyboard, a Razer mouse, and a SanDisk thumb drive. Of the three, the thumb drive is the only one which receives enough power for its LED to remain on, but none of the devices are recognized by Windows, even as 'unknown' devices.
I've gone through every step I could find or think of to correct any possible sources of problems that could be created by software - uninstalling USB drivers, changing power settings, manually adding data to the Windows registry - and nothing has worked. I have not been able to find any options in the BIOS regarding the USB ports. I have also tried to use 'refresh' in the HP Support Assistant's Health Analysis tool, but the process always fails at 'Gathering Information'.
This has led me to believe that there is a hardware issue, but I'm not sure what the nature of this issue could be. If the ports were just dead, why would the thumb drive be getting any power at all? The only thing I can think of is that there is an issue related to the battery. Per another thread on this topic, I unplugged the laptop and took out the battery and left it like that overnight, but this did not solve the problem. I then ran the Battery Check from the Support Assistant, and it very quickly indicated a failure.
Is it possible that a bad battery is causing the USB ports to not provide enough power to my devices? I previously owned a Compaq CQ42 whose battery was so bad it caused an error to pop up every time I turned on or restarted the computer, but this never resulted in any issues aside from having to keep it plugged in at all times.

Hi,
Please go to the following link to download chipset driver and reinstall on your computer:
http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?os=4063&lc=en&cc=us&dlc=en&sw_lang=&product=4217...
Hope this helps and good luck.
BH
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Is the Enhanced USB Port Replicator Really Hot-Pluggable?

Folks,
I have the T61 and am just getting to know the very nice Enhanced USB Port Replicator. We have a wireless KB/mouse, video and external hard drive, as well as the ethernet cable, all plugged in.
SITUATION "HOT PLUGGABLE": The somewhat sparse documentation (that's probably a good thing, if it works as advertised) says that the whole thing is "hot pluggable", and specifically mentions hard drives. The implication is you don't have to turn your laptop off to disconnect. WOW, a huge time saver (and a distinction with the Dell laptop I have at work, with a docking station that corrupts the files if you don't shut everything down before disconnecting).
BUT SEAGATE HAS WARNING: Seagate documentation for the popular FreeAgent Pro line of stylish external hard drives says that you absolutely MUST execute the Vista "USB safe removal" gambit in order to prevent file corruption -- or even partition corruption on your external drive. THEN THEY EVEN SUGGESTION UNPLUGGING THE DATA AND POWER CABLES. This is now in the realm of fantasy as well as inconvenience. Which leads me to think that the documentation was written by a lawyer and not a technical person.
WHAT DO YOU THINK? Is the new "Enhanced USB technology", which is written about on USB resource sites, capable of providing true, safe storage hot pluggability?
FOOTNOTE: I'd like to believe the thing is truly hot-pluggable. I'm just wondering if there are any open files related to the whole real-time backup thing from the Seagate software, if this would cause a problem. Is the USB smart enough to handle that?
Thanks for any advice.
LD
Solved!
Go to Solution.

download the keyboard customiser software, in which you can assign a certain key to function as the Fn key on the laptop keyboard. After unpacking go to your driver/swtool folder and then install it from there.
http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-67288

What usb port version do i have?

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