Video and Audio:- Analog Camera Input 4 Channel, BNC / Video Balun. HDCVI Camera- 1080P@25/30fps, 720P@25/30fps. AHD Camera- 4MP, 1080P@25/30, 720P@25/30fps. TVI Camera- 1080P@25/30, 720P@25/30fps CVBS Camera- PAL/NTSC. IP Camera Input- up to 1080P. Recording:- Compression H.264+/H.264. Resolution 4M-N, 1080N, 720P, WD1. Record Rate Main stream: 4M-N(1~15fps),1080N(1~20fps),720P/960H/D1(1~22fps). Record Mode Manual, Schedule (General, Continuous), MD (Motion Detection, Video Loss, IVP),. Audio Compression G.711U. Display:- Interface 1 HDMI ,1 VGA. Resolution 1280*1024，1024*768，1440*900，1920*1080 OSD Device ID, Time, Record Setting, Alarm setup, Audio,. Network:- Interface 1 RJ-45 Port (100M). Network Function TCP/IP, DHCP, DNS, DDNS, HTTPS,HTTP,. Smart Phone iPhone ,Android. Interoperability ONVIF 2.4, CGI. Playback and Backup:- Playback 4CH. Playback Function Day view, Hour view, Back Step, Rewind, Pause, Play, Fast Forward, Slow, Step, Snap, Sound on/off, Zoom, Backup to U-Disk. Backup Mode USB Hard Disk Driver:- Interface Type: 1 SATA Interface Capacity: Up to 6 TB capacity for each disk. General:- Power Supply: 12 VDC. Consumption: ≤ 9 W Working Temperature: 0℃~ +55℃. Working Humidity: 10% to 90% Dimensions: 345*275*75mm，(13.6*10.8*3.0 inch) Weight: ≤ 1.4 kg (3.1 lb)