GV-900B Card provides up to 32 video channels and 8 audio channels, recording up to 240 / 200 fps (NTSC / PAL) in total with H.264 software compression. The 1-32 Cams with 8-Port Audio DVI-Type cable is supplied with GV-900B card with 32 video inputs. GV-900B 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.