1. MJPEG hardware compression 2. System: NTSC & PAL system 3. Recording frame rate: NTSC max. 30 fps (quad) /PAL max. 25 fps (quad) 4. Recording modes: auto record, manual, schedule, motion detection 5. Motion detection: area selection & sensitivity adjustment for each camera 6. With video loss alarm function 7. Display Frame Rate: NTSC: 120fps 4x30fps PAL: 100fps 4x25fps 8. Video Input / Output: BNC 4-ch input / 1-ch output (Composite)