In general, Digital Video Recorder (DVR) has 4 Channels, 8 Channels and 16 Channels. Each channel is used to receive video signal from the CCTV camera. In another words, 4 Channel DVR can be used to receive up to 4 pcs of CCTV Cameras. 8 Channel DVR can be used to receive up to 8 pcs of CCTV Cameras. 16 Channel DVR can be used to receive up to 16 pcs of CCTV Cameras. You have a choice not to use all the channel.
There are many different type of 4, 8 and 16 Channel DVR available in the market. The price will vary according to
* software interface,
* country of develeped/manufacture,
* form factor,
* recording resolution and frame rate.
For first time user, please go to DVR Summary Selection