GV-1240B Card provides up to 16 video channels and 16 audio channels, recording up to 800 / 400 fps (NTSC / PAL) in total with Geo MPEG4 and Geo H264 software compression. The 1-16 Cams with 16-Port Audio DVI-Type cable is supplied with GV-1240B card with 16 video inputs (2 units). GV-1240B does not support the TV-Out function. GV-1240B is currently not compatible with VIA series and ATI series chipset motherboards. Interface: PCI?E (x4). OS supported: Windows 7 / 8 / 8.1 / 10 / Server 2008 R2 / Server 2012.