Based on 40PIN GPIO interface design, suitable for series motherboards and Nano Adopts MCP2515 and SN65HVD230 dual-chip combination solution to support 2-way CAN interface communication Onboard integrated power isolation provides stable isolation voltage. No additional power supply is required at the isolation end. Onboard digital isolation chip makes signal isolation communication , more stable and more resistant to interference On-board external terminal block power supply, supports 7~36V wide voltage power supply, can power the and expansion board at the same time, on-board SM24CANB (transient voltage suppressor tube), anti-static and transient spike voltage Onboard level conversion circuit, 3.3V/5V working level can be switched through jumper cap Colour:blue Material:PCB Package Contents: 1 x Expansion Board 1 x Screw Pack Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.