http://www.robgalbraith.com/bins/mul...6459-7231-7233

USB and FireWire
The WFT-E1/WFT-E1A communicates with the camera via the USB port of the EOS 20D or the FireWire port of the EOS-1D Mark II and EOS-1Ds Mark II. There are separate USB (Type A) and FireWire (6-pin) ports on the top of the unit, next to the antenna. USB cables are not included with the WFT-E1/WFT-E1A (at least not in the US and Canada, other regions may offer a different cable bundle), though the EOS 20D's USB cable will connect to the device.
Czyli dziura usb jest, trzeba sobie tylko przewodzik dokupic...