UCTRONICS Multifunction Expansion Board X105 for Raspberry Pi Model B+ 2 Raspberry Pi 3 model B Suitable for Raspberry Pi Model B+ 2 Raspberry Pi 3 model B. Directly connected on top of the Raspberry Pi using the board GPIO header pins Power output socket, camera flex slot so camera can still be used with the expansion board attached 6V to 23Vdc converted to 5V, 3A via step-down DC/DC converter to power the Raspberry Pi Supports microSD / microSDHC / microSDXC, convenient to write OS image Based on DS3231SN with included CR2032 battery case. NOTE: Batterie is not included