Quote:
Originally Posted by Quoth
Slower USB is white or black. USB 1.0 is really slow.
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You'll hardly find any USB 1.0 except cheap corded keyboards or mice. There are many utilities for looking at what connection speed your USB device is using. Also, you'd be surprised how many "USB 2" devices are actually "full speed" (12 Mbps) instead of "high speed" (480 Mbps).
Somewhat related: I made a little jig to see what speed a USB 1/2 device was requesting. You take 5V from either a USB host or charger and feed it to the red and black of a socket. You connect a LED and 1k resistor from D+ to ground and the same again to D- and ground. Plug in a USB device to the socket. If the D+ LED lights up it's asking for FS/HS. If the D- LED lights up it's asking for LS (USB 1).