Genuine Dell/Microsoft RC61R Media Center Remote With Premium IR(Infrared) USB Receiver, Compatible Part Numbers: MR268, OVU412002/00 This kit is for Windows Vista, Windows 7, and Media Center Edition. However it is not plug and play with Windows XP, which requires additional drivers and tinkering Kit Part Number: MR268 Remote Part Number: RC61R Receiver Part Number: OVU412002/00