DR3004F - 4 Channel DVR Card
4 channels video input in one card, the maximum display/recording rate is 30 fps under NTSC format. Support remote surveillance and PTZ control through web browser

4 Channel DVR Capture Card
DVR-4000 huperVision is an upgrade to the previous model DVR2400. Offers increased functionality such as Missing & left object detection, Virtual fence detection, Secure zone detection. Internet Explorer remote access and setup. Email notification. PTZ support. Dynamic IP (DDNS) support. 4 video inputs and one channel audio.

DR3016F - 16 Channel DVR Card
16 channels video input, the maximum display/recording rate is 120 fps under NTSC format. Support remote surveillance and PTZ control through web browser