What's in the box:1 x 8CH 2MP DVR with 2TB Security-Grade Hard Disk Drive , 1*Power Adapter, 1*mouse, 1*User Manual Video Compression:H265,H264 Audio Encode Standard:G.711 Video Standard:NTSC Video Input:8 Channels Video Output:1 HD-port & 1 VGA Audio Input/Output: 1 RCA audio in & 1 RCA audio out Maximum Playback Channel:8 Channels Included Hard Drive Size: 2TB hard drive, pre-installed Storage Capacity:Support up to one 6TB surveillance hard drives. External hard drive is not supported. Network Interface:RJ45 X1 (10/100 M) PTZ Control:Support coaxial PTZ camera USB:Two USB 2.0 ports Camera Requirements:Compatible with TVI, CVI, AHD, CVBS and IP cameras. Does not work with SDI cameras. Operating Power:DC 12V 2A