The FTDI USB->TTL cables we'd been offering for programming the Cycle Analyst have been superbly reliable, but also a bit pricey. So we designed our own USB communication circuit based on the same chip family, and made them with an extra long (3m) cable so that it's easier to reach from your computer/laptop to the CA on your bike for reflashing. And as a plus, they now come included as standard with each V3 Cycle Analyst device.