... DVR and embedded dvr ,h.264Compression High quality video Display,real time recording with network function. FEATURES: Stand-Alone DVR, H.264 ... Input4 channel, RCAAudio Output2 channel, RCAAlarm Input4 Channel, Trigger ... Camera, RS485 x 1BackupUSB2.0, CDRW, DVDRW and NetworkBit Rate5 Levels120MB/H,150MB/H,250MB/H, 300MB/H,500MB/H, 11000MB/H ... H)Weight5.0KG 4ch h.264 stand alone dvr and cctv video recorder