Remix Polar review

[Tarekith]

From the AMPFEA Access List:

"The USB 2.0 spec allow for three classes of devices:

Low Speed @ 1.5Mbit/sec
Full Speed @ 12Mbit/sec
High Speed @ 480Mbit/sec

The Virus TI is a full-speed USB device; i.e., 12Mbit/sec, as Marc pointed out. There is no way to increase this speed on the TI. If you want to check through the archives, there are MANY threads explaining this, and debating the merits and wisdom of the approach. Synopsis: Hi-Speed USB support costs money to add in, and even more money to develop and field support. At the time of the TI's initial design -- probably close to 2 years ago -- the cost and development differences were significant, and a decision was made in favor of lower price over higher speed. This is not a defense of the decision; rather, it's a simple statement of the facts.

A number of list members have claimed that this is "deceptive." I'm not sure why; the Virus TI makes no claims to be a Hi-Speed USB device. For the record: There is no longer such a thing as a "USB 1.1 device," per the directive of the USB consortium (USB.org) -- at least, in new products released since 2002. The official terms are "USB-compliant" (12Mbit or less) and "Hi-Speed USB-compliant" (480Mbit). A USB 2.0 device DOES NOT have to run at 480Mbit/sec.; it can run at any of the three compatible data rates. For example, I'm sure that your USB 2.0 mouse does not -- it probably still runs at 1.5Mbit/sec, to save cost and complexity.

Regards,

-BW"