Theres a write up on the card from Toms Hardware on the site click here , it tells you there what the remote controls .
Qoute " the infra-red remote control that comes with this version of the card. Using the remote, the Media Center software can be completely remote-controlled. Unfortunately, the remote control feature does not extend to mouse support via IR. The IR receiver is connected to the TV-out adapter using a 90 cm long cable. "