Dahua DHI-HCVR5208A-S2 8 x BNC 2 SATA ports, up to 8TB 8CH Tribrid 720P-Pro 1U HDCVI DVR Network Interface: 1 x RJ-45 port (10/100M) Audio Input: 4 x RCA Compression Format: H.264 Operating System: Embedded LINUX Power Supply: Power Supply : DC 12V / 4A Power Consumption: 15W (without HDD) Temperature: -10 degree C ~ +55 degree C Humidity: 10% ~ 90% RH Dimensions: 2.17 x 14.76 x 11.22