Video/Audio input:16 channel Recording Rate:480 fps (NTSC), 400fps (PAL) Support Win7 32 bits Installing 2 cards for 32 ch

Specifications
Input Type	D-Type: DB15 x 2 (for video) ; DVI : DVI x 2 (one for 16 video, one for 16 audio)
Video Input(s)	16 Cams
Audio Input(s)	16 Channels
TV Output	RCA Connector x 1
Recording Rate At 320 X 240 Resolution	480 fps (NTSC), 400 fps (PAL)
Display Rate	480 fps (NTSC), 400 fps (PAL)
Video Resolution - NTSC/PAL	Full D1, Half D1, CIF
Compression Format	Geo MPEG4, Geo MPEG4 (ASP), Geo H264, Geo H264 V2
GV-NET Card Support	Yes
GV-NET/IO Card Support	Yes
GV-Hybrid DVR Card Support	Yes
Installation Guide	D-Type
Minimum System Requirements
OS Supported	Windows 2000 / Windows XP / Windows Server 2003 / Windows Vista/Win7 32 bits(don't support Win7 64 bits)
CPU	Pentium 4-3.0GHz with Hyper-threading or above
RAM	2 x 512 MB dual channel
HDD	250 GB or above (recommended)
VGA	ATI Radeon 9550 or above NVIDIA 6200 or above
DirectX	9.0 or above

GV1480 pc based dvr suport window7