Feature:
Four channels video input, one channel output.
Standard collocate without include Audio. We can add audio by customize.
Manual record, timing record, move detect etc.
Include remote controller, support 2.5 inch HDD(laptops hard disk).
With USB interface.
Suitable for bus with 12V or 24V power supply (Rang: 8V-36V).

Technology parameter
Compress format: MJPEG, high definition, real time record
Video signal: Four channels input, one channel output
Resolution: Display: 720X576 Video record: 640X272
Audio signal: Standard version without audio, Upgrade version with one channel audio input/output.
HDD: Support one 2.5 inch HDD(laptops hard disk), 400G at most.
Video time: 120G HDD can last 90-2250 hours
Copy: USB interface or fetch HDD case to connect with computer USB interface.
Power input: DC 12V or 24V(Range 8-36V), Working power <15W
Power output: DC 12V, 1A, Provide power for 1-4 cameras at the same time.
Measurement/Weight: 208mm(L)X178mm(W)X50mm(H), International standard 1DIN size