We are very happy to report we've had zero problems with the USB board. If you do have an dead USB board out of warranty here's what you'll do.
1) Send us an email that you have a dead usb board.
2) Send the usb board to us with $30 (check, money order, or paypal.)
3) Once we receive your board we'll immediately ship out a replacement. The replacement will have a 30 day warranty.
This is a flat fee no matter what is wrong with the board.