... DH.264 compression camera 16ch 8ch 4ch digital video recorder ModelHDVR3504HDVR3508HDVR3516PriceMOQ:10PCS : HDVR3504: 51$, HDVR3508 58$, HDVR3516 ... 1outputAlarm Mode Motion Detection, Sensor triggered, Video Loss, HDD Full, HDD ErrorAlarm in/out4CH in /2out4CH in /2out4CH in ... Manual, motion, Alarm, Web Client recordHard DiskSupport SATA HDD up to 2000GB,16CH support 2 SATANetwork ProtocolSupport DHCP, ...