1. Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards2. 1-Ch CAN, adopts MCP2515 controller and CAN transceiver, converts SPI to CAN3. 2-Ch RS485, adopts SC16IS752+SP3485 dual-chip combination, converts SPI to RS4854. Onboard power conversion circuit, supports 8~28V wide voltage power supply, can power the Raspberry Pi at the same time5. Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply required for the isolated terminal6. Onboard unibody digital isolation, for isolating the signal, reliable and jamproof, low power consumption7. Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic8. Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance9. Onboard 120Ω terminal resistor, configured by jumper10. Onboard terminals and pin headers, more convenient connection11. Breakout SPI control pins, for connecting with host control boardsSpecification: Package Weight One Package Weight 0.20kgs / 0.45lb One Package Size 8cm * 6cm * 3cm / 3.15inch * 2.36inch * 1.18inch Qty per Carton 200 Carton Weight 41.00kgs / 90.39lb Carton Size 34cm * 32cm * 32cm / 13.39inch * 12.6inch * 12.6inch Loading Container 20GP: 765 cartons * 200 pcs = 153000 pcs40HQ: 1778 cartons * 200 pcs = 355600 pcs