Geovision GV-2004 card is based on the MPEG-2 and MPEG-4 hardware compression technologies, the new generation cards GV-2004 / GV-2008 are designed to meet high profile security demands. The GV-2004 / GV-2008 utilize MPEG-2 and MPEG-4 hardware compressions to free more CPU capacity from intensive compression tasks. Compared with the flagship GV-Combo Card, where videos are compressed with software compressions such as Geo MPEG-4, Geo MPEG-4 ASP, and Geo H264, the GV-2004 / GV-2008 provide an alternative for hardware compression. GV-2004 / GV-2008 both support multiple video and audio input ports, TV output, real-time display, and D1 quality video resolution. GV-2004 AVAILABLE! Product Details: Video Inputs x 4 Audio Inputs x 4 H.264 Hardware Compression 120fps Display and Recording rates DB15 x 1 (Video and Audio) GV-DSP combination Built-in I/O Hardware Watchdog 195 (W) x 102 (H) mm 3 year warranty Minimum System Requirements OS Supported Windows 2000 / Windows XP / Windows Server 2003 CPU Pentium 4-2.4C GHz, 800 MHz FSB RAM 2 x 256 MB Dual DDR400 SDRAM HDD 80 GB VGA ATI Radeon 9550 or above (recommended) DirectX 9.0c or above