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Computer help: Compatibility between USB 2.0 & USB

by gcbaltazar - 11/13/06 8:25 PM
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Post 1 of 26

Compatibility between USB 2.0 & USB

by gcbaltazar - 11/13/06 8:25 PM

I am considering purchasing a USB 2.0 device to plug into my PC which has a USB port. Do I have to use a USB 2.0 cable to connect the device to my PC or can I use a USB cable which I already have?

Post 2 of 26

"iffy"

by R. Proffitt Moderator - 11/13/06 9:10 PM In reply to: Compatibility between USB 2.0 & USB by gcbaltazar

While there are success stories of using older USB 1.x cables, it's not worth losing external drive data for the sake of saving some old cable. This is entirely your choice here. Is your data worth it?

Bob

PS. I find USB 2.0 cables under a few dollars on newegg.com and geeks.com so I've gifted all my old USB 1.x cables and don't have any left.

Post 3 of 26

That got me thinking...

by gcbaltazar - 11/14/06 8:59 PM In reply to: "iffy" by R. Proffitt Moderator

Now I read somewhere that I can plug in a USB 2.0 device into a USB port, but could there possibly be a performance (or speed) slump that goes with it?

Also, I have a lot of cables; I only suspect they are USB cables as opposed to USB 2.0 because I have had them for approximately 4 years. I don't really know how old they are. How can I distinguish between a USB cable from a USB 2.0?

Post 4 of 26

Your research.

by R. Proffitt Moderator - 11/15/06 4:06 AM In reply to: That got me thinking... by gcbaltazar

http://www.google.com/search?q=How+can+I+distinguish+between+a+USB+cable+from+a+USB+2.0%3F&start=0&start=0

If it's not marked USB 2.0, it's likely to be the original. I paid 2 bucks for the replacement cables so it's very hard for me to spend any time on this. The risk of corrupting some USB hard disk is not worth saving 2 bucks. Maybe someone will disagree.

As to performance, yes. For instance you can't record a DVD on USB 1.1. A one hour copy on USB 2.0 balloons to about 40 hours on USB 1.1. Is it worth it to connect to the old style port? In my view no.

Bob

Post 5 of 26

Backwards compatibility

by Hagrun - 11/16/06 11:46 AM In reply to: That got me thinking... by gcbaltazar

Some USB 2.0 devices can be used in USB 1.1, but not all. The only way to know is to check the packaging of the device, ask someone who's done it with that specific device, try it yourself, or call the manufacturer. I suggest you buy a USB 2.0 card from Newegg.com and some USB 2.0 cables and be done with it. The parts are dirt cheap.

Good Luck

-Nate

Post 6 of 26

It'll work, but...

by jackson dougless - 11/14/06 7:10 AM In reply to: Compatibility between USB 2.0 & USB by gcbaltazar

If you don't use a USB 2.0 cable, it'll be SLOW. Agonizingly slow. There are even a few devices that won't work with anything other than USB 2.0 cable. However, most of them COME with a USB 2.0 cable, so it shouldn't be an issue if you have USB 2.0 ports on your system. And since USB 2.0 is a hardware based upgrade, I wouldn't just assume you have it.

Post 7 of 26

I can't remember the source

by Dutchmants - 11/17/06 3:36 PM In reply to: Compatibility between USB 2.0 & USB by gcbaltazar

I think it was "Maximum PC" that did some lab test on cables from the cheapest old 1.1 to some USB 2.0 cables marketed by Monster Cable and found no major differences with how there performed. If my memory is correct they use an external storge device with their test.

Post 8 of 26

I forgot to add

by Dutchmants - 11/17/06 3:38 PM In reply to: I can't remember the source by Dutchmants

The test were for a USB 2.0 device and controller. Things will be slow with a 2.0 device on a 1.1 controller.

Post 9 of 26

Compatibility between USB 2.o and USB

by robsb - 11/17/06 4:54 PM In reply to: Compatibility between USB 2.0 & USB by gcbaltazar

To my knowledge, there is no difference between a USB 1 CABLE and a USB 2.0 cable except marketing hype. I have used both with no difference. However, if you computer port is USB 1.0 and not 2.0 your device will either not run at all or if you are lucky will run but at the slower USB 1.0 speed. The cable will make no difference as they are wired exactly the same. For example if you plug in a jump drive directly to the port (no cable) it will usually run but a message will come up telling you you are not getting the full speed of the device because you did not plug it in to a USB 2.0 compliant port. So the real issue is the Port version you already have, not the cable.

Post 10 of 26

USB Cables? Why

by NeilSilva - 11/18/06 6:37 AM In reply to: Compatibility between USB 2.o and USB by robsb

I have dozens of USB cables, and never knew there was a difference between USB 1.1 cables and USB 2.0 cables. There are, however, external hubs that are version specific. If I plug a USB 1.1 hub into a USB 2.0 port, the device conneced at the other end will seek the least common denominator (1.1) and work at that speed--or not a all.

Post 11 of 26

Identifying USB vs USB 2.0 ports in PC

by rossnpeggy - 11/17/06 5:41 PM In reply to: Compatibility between USB 2.0 & USB by gcbaltazar

My computer is just old enough (or should I say new enough?) to make me think it should have USB 2.0 ports, but how can I be sure. When I bring up the spec's on my computer I can't see where it says... Is there a way to tell? I sometimes have trouble getting things to work. When connecting my HP printer, I have to use the parallel port (BTW - the HP printer has both ways of connecting it), but my Compaq notebook runs the HP Printer from the USB 2.0 port just fine.
Thanks,
-Ross-

Post 12 of 26

Finding USB version

by osoman6 - 11/17/06 7:56 PM In reply to: Identifying USB vs USB 2.0 ports in PC by rossnpeggy

Go to Device Manager (Right click My Computer, click Properties, click Hardware) Click Device Manager. Go to the USB devices and expand it. If there is anything that say Enhanced Host Controller, you have USB 2.0.

Post 13 of 26

Identifying USB2 port

by nancybonnett - 11/17/06 11:11 PM In reply to: Finding USB version by osoman6

I have a Dell desktop running XP Home Edition. According to my Device Manager I have 5 USB ports, but only one is USB2. How do I determine which one is the USB2?

Post 14 of 26

USB 2.0

by cbazza - 11/18/06 12:32 AM In reply to: Identifying USB2 port by nancybonnett

I would also like the answer to how can I determine which port is the USB port.. Also what does "via Rev 5 or later USB Universal host controller" mean?

Post 15 of 26

Identifying USB 2.0 ports

by OmegaGeek - 11/18/06 2:20 AM In reply to: USB 2.0 by cbazza

I have a SONY VAIO and the marketing material says it has two USB 2.0 ports. There are six USB ports total. I also want to know how to identify the 2.0 ports.

Would it kill these manufactures to put a label on the dang ports?

SigmaGeek

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