| 1 × CR1220 coin cell holder |
| 1 × USB Type-C connector (power only, SMD mounting pads) |
| 1 × MicroSD connector (standard) |
| 1 × jumper shunt |
| 1 × Type A USB socket (right-angle) |
| 1 × 22-pin male header (2.54mm pitch) |
| 1 × 40-pin male low-profile header (2.54mm pitch) |
| 2 × 20-pin low-profile female socket (2.54mm pitch) |
| 2 × 6-pin female socket with long pins (stackable) |
| 1 × 2×14-pin right-angle male header (2.54mm pitch) |
| 1 × 3.5mm stereo jack socket, DPST switched |