Item  | Name  | Description  | 
|---|---|---|
1  | LED indicators  | Indicators for transaction and device status.  | 
2  | Alignment hole  | *Accepts the mounting screw to secure the PD20 to a device.  | 
3  | Alignment hole  | *Accepts the mounting screw to secure the PD20 to a device.  | 
4  | Rear contacts  | Used for USB charging and communication.  | 
5  | On/Off button  | Turns the PD20 on and off.  | 
6  | USB port  | USB port for charging the PD20.  | 
7  | Screw hole 1  | Accepts the mounting screw to secure the PD20 to the SCR battery.  | 
8  | Contactless reader  | Contactless payment reader.  | 
9  | Magnetic strip slot  | Opening to swipe card magnetic strip.  | 
10  | Card slot  | Opening to insert a chip card.  | 
11  | Screw hole 2  | Accepts the mounting screw to secure the PD20 to the SCR battery.  | 
* Reserved for future use.  | ||