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Are all USB cables USB 2.0 compliant?

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XprincoX

bargain hunter
Joined
Aug 30, 2001
Location
Irvine, CA
I do believe that the old usb 1 cables will work with usb 2 devices. The cables just pumping out higher frequencies. Tho the device will show the usb 2 markings. :D

EDIT: Actually just read that there is a different cable for usb2. The cable must be usb2 compliant... tho im not exactly sure how u distinguish between em. I think theres a marking on the plug.
 

David

Forums Super Moderator
Joined
Feb 20, 2001
I would imagine it would be like using a network cable that barely does 10MBit in a 100MBit network.

Both ends are capable of 100MBit, but the cable will prevent the devices communicating at peak speed.

David
 

Clarpet

Member
Joined
Aug 27, 2002
Location
Iowa
NO. They are not all 2.0 compliant...per my buddy I work with, they will all OPERATE w/2.0, but you won't necessarily get the 2.0 speeds....so yes, its worth your $20. Again, that's per my buddy, also a computer guru, but I'd take his word for it.
 
OP
Patrick G

Patrick G

Member
Joined
Dec 2, 2001
Location
Springfield, MO
Taken from www.buslink.com:

Q: Can I use the USB 1.1 cables in USB 2.0 environment?
Yes. USB 2.0 is backward compatible with USB 1.1 even down to cable and connectors. All cables and connectors in USB 2.0 and USB 1.1 are created equal. You can use the existing certified USB 1.1 cables to enjoy the full benefit of USB 2.0.
 

Clarpet

Member
Joined
Aug 27, 2002
Location
Iowa
Patrick G said:
Taken from www.buslink.com:

Q: Can I use the USB 1.1 cables in USB 2.0 environment?
Yes. USB 2.0 is backward compatible with USB 1.1 even down to cable and connectors. All cables and connectors in USB 2.0 and USB 1.1 are created equal. You can use the existing certified USB 1.1 cables to enjoy the full benefit of USB 2.0.

Oh well..I was wrong "SMACK!!" (work buddy is now in pain) :K
 

AntecRep

Member
Joined
May 24, 2002
USBIF says Fully compliant Original USB cables will work fine at Hi-Speed USB speeds. USB cables are not all fully Original USB compliant. Goes on some more about testing etc etc.

AntecRep
 

Avatar28

No, I showered
Joined
Feb 27, 2002
Location
Nashville, TN
There were two types of USB 1 cables. 1.0 and 1.1. 1.0 cables will not work with USB 2.0. 1.1 cables will (or should).