Alright, so USB 2.0 has a theoretical rate of 480Mb/s(divided by 8 is 60MB/s),
|This comparison is dominated by the Transcend JetFlash 110, which features impressive performance outstripping that of all the other contenders reviewed. At 27 MB/sec maximum read transfer rate, Transcend has set the bar pretty high for its competition. The protective mechanism for the JetFlash USB connector also represents an elegant and effective solution. Finally, this offering also includes a USB extension cable and a protective sleeve.
FireWire 800, or IEEE 1394b, transfers data at up to 54 MB/s in conjunction with a external high-speed hard disk, which easily outperforms other alternatives we have tested in the past. Also, when operated as a network adaptor, 1394b offers a data transfer rate of up to 400 Mbps. For data transfer involving files of several hundred megaBytes each, 30 MB/s was a typical data rate achieved, which far surpasses that of 100 Mbit Ethernet (see Benchmarks).
However, those are comparing flash to hard drives, so i'll look for a usb HD review..
alright check out: http://www.tomshardware.com/2006/10/...2-0/page5.html
seems that the USB capped out at 29MB/s