4 channel Digital network video recorder

New item, open box. A hard drive is NOT INCLUDED. You must separately purchase one with a capacity of your choice up to 8TB in size. We recommend using surveillance hard drive only from Western Digital Purple, Seagate Skyhawk or Toshiba Surveillance. Other types of hard drives may cause your NVR to stutter, skip, freeze and will prematurely fail due to constant writing conditions. This 1080N(1080P Lite) DVR supports 960H CVBS Camera, when use with this camera, the resolution is only 960H, not 1080N. This 1080N(1080P Lite) DVR supports hybrid mode, which means you can use Analog camera and IP camera together, but you need to adjust the channel type to hybrid mode first. The default is DVR mode which support HD analog camera only. Cameras are NOT INCLUDED and are sold separately. This DVR does not support cameras which resolution is higher than 2MP. This is a hard-wired security dvr, it could not connect any wireless cameras. If you want to remote viewing on phone, you would need to connect the internet to the dvr.