Features: 
1) High quality color video at 30/25fps recording/playback quad mode
2) Optional: NTSC and PAL system
3) Recording mode: continuous, motion detection, sensor activated
4) Motion detection: area selection and sensitivity adjustment for each camera
5) Display resolution: NTSC 720 x 480; PAL 720 x 576
6) Recording resolution: NTSC 320 x 112, 640 x 224; PAL 320 x 136, 640 x 272
7) Recording frame rate: NTSC max. 30fps (quad); PAL max. 25fps (quad)
8) PC Backup via USB2.0 port
9) With auto-switch function
10) With video loss alarm function
11) With power recovery auto-recording function
12) PTZ control, IR remote control, audio and VGA optional