Makerfocus CAN-BUS Shield V1.2 Note: CAN BUS shield comes unassembled, soldering is required.!!!! More detail pls refer to: https://www.youtube.com/watch?v=oL9CO9YAgYE; Wiki link: https://www.elecfreaks.com/wiki/index.php?title=CAN-BUS_Shield; Resources: https://drive.google.com/drive/folders/1czTZ4Is2B1MfPR4O69H2fo2UPJBmgpnw?usp=sharing Implements CAN V2.0B at up to 1 Mb/s; SPI Interface up to 10 MHz; Ariduino/ Freaduino Completely compatible Standard (11 bit) and extended (29 bit) data and remote frames; Industrial standard 9 pin sub-D connector; Size: 78mmx53.5m Two receive buffers with prioritized message storage; Operating voltage: DC5-12V We Have a Strong After-sales Service Team: As long as you have any questions about the product, we will resolve your issue immediately if received your email, your satisfactory purchase experience is our greatest hope! How to email us? Plz click MakerFocus and click Ask a question to email us! Looking forward to your consultation!