H.264 CIF Realtime dvr recorders 1 SATA HDD, 2 USB 2.0 dual encoding streams ... , TV, VGA output Specifications of H.264 CIF Realtime dvr recorders> Up to 4/8/16 cameras with SXGA(1280×1024 ... , Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup selection, Digital zoom(any size)Backup ModeFlash drive / USB HDD / USB CD ... )Weight1.5KG(without HDD) Dahua H.264 CIF Realtime dvr recorders