What is the Multiplexer Accessory? Get total coverage by transforming your Thinkware Dash Cam into a multi-channel surveillance system with the Multiplexer Box accessory. Thanks to the modular design of the multiplexer, a combination of side, interior, and rearview cameras can be paired together with the main forward-facing dash cam. Here’s what you get in the box Multiplexer Box Multiplexer Box Cable (with power cable) V-Out Cable Accessory Camera Adaptor - Q850, U1000 Plus (0.3m) Rear View Camera Cable - ARC (7.5m) Installation Guide NOTE: The Multiplexer Box can ONLY be used as an add-on accessory to a compatible Thinkware Dash Cam. The Multiplexer Bundle by itself cannot be used to record driving footage. Compatible dash cams: U1000 Plus, Q850, Q200, F200 PRO, F790, X800 and X700 Installation guide: How to Install the Multiplexer Box Specifications: Key:piano code switchcomposite screen can be configured according to switch combination Power Source:2 (BAT, GND)DC 12 V ~ 24 VCable length: 3 m AV-IN (For optional camera connection):4 cables (CAM 1, CAM 2, CAM 3, CAM 4)2.5 pi Stereo-jack typeAFHDCable length to connecting connector: 15 cm AV-OUT(For front camera connection):1 cable (AV-OUT)2.5 pi Stereo-jack typeFor front camera connectionCable length: 3 m Recording Channel: Up to 4 Analog Full HD cameras can be input (total 5CH) Composite Video: Full HD (1920 x 1080) @ 30fps Dimensions (WxDxH): 65 x 65 x 17.5 mm (2.56 x 2.56 x 0.69 inch) Weight: 40.0 g (1.41 oz) Storage Temperature: -20°~ 70°C (-4°~ 158°F) Operating Temperature: -10°~ 60°C (14°~ 140°F)