# Back of the module & connectors

### Representation of the back of the module

### [![image.png](https://nanopolis.storage.googleapis.com/uploads/images/gallery/2024-06/scaled-1680-/image.png)](https://nanopolis.storage.googleapis.com/uploads/images/gallery/2024-06/image.png)  


<table border="1" id="bkmrk-power-standard-euror" style="border-collapse: collapse; width: 100%; height: 204.547px;"><colgroup><col style="width: 30.5556%;"></col><col style="width: 69.568%;"></col></colgroup><tbody><tr style="height: 29.7969px;"><td style="height: 29.7969px;"><span style="color: rgb(224, 62, 45);">**Power**</span></td><td style="height: 29.7969px;">Standard eurorack power -12V / GND / +12V , Red stripe of the ribbon is on the left</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">**<span style="color: rgb(230, 126, 35);">MicroUSB</span>**</td><td style="height: 29.7969px;">Micro USB socket, to connect to a computer, used to update the firmware</td></tr><tr style="height: 144.953px;"><td style="height: 144.953px;"><span style="color: rgb(10, 56, 255);">**Extension**</span></td><td style="height: 144.953px;">Extension port, used to plug the CV/Gate &amp; Midi extension

<p class="callout warning">Warning ! The ribbon cable must be plugged in the right direction. There is a "RED" inscription on the PCB which indicates where the red stripe of the ribbon should be.</p>

</td></tr></tbody></table>

### Representation of the back of the expander module

[![expander back.png](https://nanopolis.storage.googleapis.com/uploads/images/gallery/2024-06/scaled-1680-/expander-back.png)](https://nanopolis.storage.googleapis.com/uploads/images/gallery/2024-06/expander-back.png)

<p class="callout warning">  
Warning ! The ribbon cable must be plugged in the right direction. There is a "RED" inscription on the PCB which indicates where the red stripe of the ribbon should be.</p>