DSD TECH SH-C31A USB to CAN Adapter with FD Support Based on Canable 2.0

DSD TECH: DSD TECH focuses on the development of communication connection devices such as USB/Serial/Wireless. We have served more than 100, 000 customers in Europe, North America and Japan.
Open Source Hardware,
Actually Published: We do not only build on open hardware we publish our own design back. The full schematic and PCB layout for this exact board are on our GitHub (dsdtech-official) as editable design files, not pictures, under the CERN-OHL-S- 2.0 licence, together with the firmware images. Every claim above is in that schematic. Go and check it.
Based on CANable 2.0,
Hardened for the Field: An enclosure instead of a bare board, and protection the reference design leaves out a resettable fuse in series with CAN_H and with CAN_L, and TVS clamping on both. A 120 ohm termination switch is built in, and the bus lands on a 3.81 mm screw terminal rather than a header.
CAN FD Works Out of the Box: No second firmware, no serial port, no reflashing the candleLight firmware fitted at the factory carries CAN FD over the same interface as classic CAN.
Measured on this board: 64-byte FD frames at 5 Mbit/s data rate, bidirectional for 75 minutes, zero frames lost and zero bus errors. Units produced from September 2026 ship with our current build, v 1.4.
Support That Does Not Stop at the Sale: Permanent technical support, 1-year replacement, and an answer within 1 working day. Questions can also go in the open issue tracker on our GitHub, where the answer stays readable for the next person next to the wiring, termination and firmware guides.