... DVR Cards, GV1480 are GVision top level product series. With the 3-in-1 combo card (8-16 ch audio ... video real time) Gvision Combo DVR Cards, GV1480, GV1240 ... ); 1 back panel slot for DB9x2 (extension card for audio)Video Compression GeoMPEG4, GeoMPEG4(ASP), GeoH264, GeoH264 ... Half D1, CIF GV-Net/IO card support Yes GV-Hybrid DVR card support Yes Dimensions D-Type PCI ...