The RP5/ROVER 5 Expansion Plate RRC07A White is an expansion board for the Pololu RP5/Rover 5 robot platform. It provides additional expansion space for additional sensors and other components. The Expansion Plate has two mounting options, one is suitable for attaching up to three RP5 Sensor Boards, while the other is ideal to hold two or four PIR or other motion sensors. In addition, the plate also provides space for inserting a servo connection PCA, 4 x AA battery holder, a 4-pin JST PH cable connector, and two 4-pin 2.54mm pluggable terminal blocks. The plate also has two mounting holes and two holes for connecting to 3-pin JST-SH socket (not included). The plate is white in color and is lightweight, making it easy to install and use.