2-Channel Isolated CAN Bus Expansion, Multi Onboard Protection Circuits ^^ Enable Isolated And Stable CAN Bus Capability For Your Raspberry Pi ^^ Standard Raspberry Pi 40PIN GPIO Header, Customized For Raspberry Pi Series Boards ^^ MCP2515 CAN Controller + SN65HVD230 CAN Transceiver ^^ SM24CANB TVS Diode, ESD Protection, Transient Peak Voltage Protection