... ,Alarm,VGA,USB,remote control,internet 4CH H.264 Standalone Camera cctv DVR Features: 1.Second-generation video compression of H ... same time support the operation of recording, playback, network transmission, backup, mobile control and interface operation 3.Two USB ports, two ... are high-speed USB2.0 interface, you can mix backup and mouse 4.Powerful CMS features, which can display 64 ...