The 2-CH CAN FD HAT is a 2-Channel CAN bus expansion HAT designed for , supports CAN FD (CAN with Flexible Data-Rate). It enable CAN bus for your , not only the original CAN 2.0 protocol, but also the CAN FD extension, with higher data throughput. Thanks to multi onboard protection circuits, including 500W lightningsurge, ESD protection, short circuit protection, and electrical isolation, it make the communication more safe and more reliable. Standard 40PIN GPIO extension header, supports series boards, Nano Supports both traditional CAN2.0 and CAN FD protocols Breakout SPI control pins, for connecting with host control boards like STM32/for Onboard electrical isolation, up to 5KV isolated voltage, stable operation, higher anti-interference capability Onboard lightningproof, ESD protection, short circuit protection, more safe communication Onboard voltage translator, select 3.3V/5V operating voltage by jumper Onboard 120Ω terminal resistor, configured by jumper Colour:blue Material:plastic The actual product may have slight color difference or difference, which not affect the use Package Contents: 1 x Expansion Board 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.