... VideoInput4 channel, BNC(1.0Vp-p, 75Ω)StandardNTSC 120F/S, PAL 100F/SOutput1 TV, BNC(1.0Vp-p, 75 ... Stream: CIF(1~25/30F/S), HD1(1~12/15F/S), D1(1~6F/S)Extra Stream: QCIF(1~25/ ... SATA port, Max 2TB HDD supportedSpace OccupationAudio: 28.8MB/H, Video: 56~900MB/HHDD ManagementHard disk hibernation technology, ... 86~106kpaDimension1U,336mm X 250mm X 50mm(W X D X H)Weight3.0KG(without HDD) H.264 4CH DVR 8104