# S-RTK module layout

> Source: https://topodrone.com/knowledge/topodrone-slam-100/s-rtk-module-layout/
> Section: TOPODRONE SLAM 100
> Updated: 2026-10-02

![S-RTK module layout](https://topodrone.com/knowledge/i/99928efcac2012aa.png)

1    Nano-SIM slot                                             5    Mode switch  
                                        2    Micro-SD slot                                              6    Type-C power connector (20 V)   
                                        3    USB Type-A connector                                      7    Push-pull connector 1  
                                        4    Indicator                                                    8    Push-pull connector 2