> For the complete documentation index, see [llms.txt](https://docs.cubepilot.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cubepilot.org/cubenode/v3-and-v4-pin-difference.md).

# V3 and V4 Pin Difference

| Pin Number | V3 Pin Type            | V4 Pin Type |
| ---------- | ---------------------- | ----------- |
| 11         | PB14                   | PC13        |
| 12         | NC                     | HV\_IN      |
| 40         | PC5                    | PB2         |
| 41         | PA7                    | PF15        |
| 48         | PB4                    | PE12        |
| 52         | PC1                    | PD3         |
| 56         | PA2                    | PD10        |
| 59         | PB3                    | PB9         |
| 63         | PC4                    | PD11        |
| 67         | PA1                    | PD4         |
| 92         | **Reserved Don’t Use** | DSI\_D1P    |
| 93         | **Reserved Don’t Use** | DSI\_D0P    |
| 94         | **Reserved Don’t Use** | DSI\_CKP    |
| 95         | **Reserved Don’t Use** | DSI\_CKN    |
| 104        | **Reserved Don’t Use** | DSI\_D1N    |
| 105        | **Reserved Don’t Use** | DSI\_D0N    |