For RetroCarGuy530, it's a relatively simple process to convert one of the supported Thinkware front dash cameras into a dash camera with up to five video cameras.
Because the MB-100 Multiplexer system includes only one front dash camera, only one microSD card is required. The MB-100 Multiplexer’s combined video feed will also be saved in the rear camera video file on the front dash camera, making it a less expensive way to get up to a 5 Channel dash camera system. If a dash camera system is made up of multiple front dash cameras, it is possible that not all of the front dash cameras in the system will detect the same event, resulting in missed video in those situations.
If the Thinkware front dash camera connected to the MB-100 Multiplexer is recording video, all of the cameras connected to the mb100 will record video as well, so you won't miss anything that happens around your vehicle. However, because the MB-100 combines around 2-4 1080p@30fps video feeds into one video feed, the video quality may be reduced.
Regardless of the operational mode for the Thinkware front dash camera, the MB-100 Multiplexer consumes the same amount of power. This can reduce the amount of time available for parking mode recording. It is highly recommended to use a dash camera battery pack to power the Thinkware front dash camera and the MB-100 Multiplexer when it is required to support parking mode recording operations.