DVR card Item No.GV-250B software V8.2 ... Compression Format:Wavelet, MPEG-4, GEOMPEG- DVR Card, 4CH DVR card, security dvr cardName: 4CH DVR CardModel: GV-250B SpecificationInput TypeBNC: BNC Video ... -4, GEOMPEG-4GV-DSP SupportYESGV-A16 SupportNOGV-NET/IO Card SupportNOSoftwareV8.2Dimension BNC: 120mm x 95mmD-Type: 120mm x ... (Recommended)VGANVIDIA Geforce2 MX200 32MBDirectX9.0 or above 4CH DVR Card