Dual digital TV receivers for ATSC or clear QAM. Watch and record two ATSC or clear QAM digital TV programs at the same time. Watch and record all ATSC and QAM formats, including the high definition 1080i format. Clear QAM digital TV channels are TV channels which are broadcast "in the clear" on your cable TV network. Dual built-in hardware MPEG-2 encoders for recording analog cable TV, for the best system performance. Watch and record two cable TV programs at the same time. When recording analog cable TV, the dual built in hardware MPEG-2 encoders let your PC run at full speed! Built-in antenna splitter allows you to make one connection to either cable TV or an ATSC antenna, and watch and record up to 2 channels. New feature! Now with on-board IR remote control with dual IR blasters for Windows Media Center! Windows Media Center compatible. New! Now supports Windows 7. Single slot PCI Express (PCIe) X1 board, half height.