Dahua DHI-NVR42A16-16P NVR 16CH POE 2SATA Network Interface: 1 x RJ-45 port (10/100/1000Mbps) Compression Format: H.264 / MJPEG Operating System: Embedded LINUX Power Supply: Power Supply: Single, AC 100~240V, 47/63 Hz Power Consumption: NVR: Temperature: -10 degree C ~ +55 degree C Humidity: 10% ~ 90% RH Dimensions: 2.09 x 14.76 x 12.87 Weight: 5.51 lbs. (without HDD)