Video/Audio Input	IP Video Input:  16-ch 4CIF/8-ch 720P/4-ch UXGA Real Time, or 8-ch UXGA/4-ch 5 Megapixel not Real Time
Hard Disk	Interface Type:  8 SATA interfaces Capacity:  Up to 2TB capacity for each disk
External Interface	Network Interface:  1RJ-45 10/100/1000Mbps self-adaptive Ethernet interface Serial Interface:  RS-232, 1 RS-485, Keyboard USB Interface:  2, USB2.0 Alarm In:  16-ch Alarm Out:  4-ch
General	Power Supply:  100~240VAC, 6.3A, 50~60Hz Consumption:  ≤20W (without HDD) Working Temperature:  -10°C~+55°C (14°F~131°F) Working Humidity:  10%~90% Chassis:  19-inch rack-mounted 2U chassis Dimensions:  450(W)×470(D)×90(H)mm Weight(without HDD):  ≤ 8 kg(17.64lbs)