H.264 CIF Realtime dvr recorders 1 SATA HDD, 2 USB 2.0 dual encoding streams smart phone monitoring RS485, TV, VGA output Specifications of H.264 CIF Realtime dvr recorders> Up to 4/8/16 cameras with SXGA(1280×1024) display > H.264 dual-stream video compression > VGA / TV synchronous video output > Live, recording, playback, backup & remote access > All cannel simultaneous realtime playback > ...