MSD7740 4-connector CAN-bus hubs

These MSD 4-connector CAN-bus hubs allow users of the Power Grid system controllers to connect other MSD modules to the system for added features. They feature CAN-bus stacking technology so that racers will never run out of spots where they can use plug-in modules. The hubs have four plug-in points with a single output so that they can be plugged into one another.