264 Analog Video Input: 4-ch Analog and HD-TVI video input: Support HDTVI input: 4MP, 3 MP, 1080p25, 1080p30, 720p25, 720p30, 720p50, 720p60 Note: The 3 MP signal input is only available for the first channel of DVR-204Q-K1 Supported camera types: Support AHD input: 1080p25, 1080p30, 720p25, 720p30 Support CVI input: 1080p25, 1080p30, 720p25, 720p30 Support CVBS input: PAL/NTSC IP Video Input: 1-ch Video Input Interface: BNC (1.0 Vp-p, 75? HTTPS, ONVIF Hard Disk Driver Interface Type: 1 SATA Interface Capacity: Up to 6 TB capacity for each disk External Interface Network Interface: 1; 10M / 100M self-adaptive Ethernet interface USB Interface: 2 USB 2.0 Interfaces General Power Supply: 12 VDC Consumption:? 8 W Working Temperature: -10 oC to +55 oC (+14 oF to +131 oF) Working Humidity: 10% to 90% Dimensions: 260 × 222 × 45 mm (10.2 × 8.7 × 1.8 inch) Weight:? 1 kg (2.2 lb) Package Includes BD 5MP 4-CH HD-TVI/AHD/CVI/CVBS video & 1-ch audio input, 2-ch IP video input up to 6MP resolution User Manual HDD Screws and Cable USB Mouse Power Supply Unit.