GV-600B Card provides up to 4 video channels and 4 audio channels, recording up to 30 / 25 fps (NTSC / PAL) in total with H.264 software compression. The 1-4 Cams with 4-Port Audio DVI-Type cable is supplied with GV-600B card with 4 video inputs. GV-600B is currently not compatible with VIA series and ATI series chipset motherboards. Interface: PCI?E (x1). OS supported: Windows 7 / 8 / 8.1 / 10 / Server 2008 R2 / Server 2012.