The GPD Pocket 4 has a modular port that allows you to interchange between modules which expands its connectivity. The actual changing process is very easy and takes just a few moments. This guide will show how to change the module on the GPD Pocket 4.
Remove the two screws on either side of the module port
You can now remove the module by sliding it out. You can get a grip of the module from the bottom.
You can now insert the module, it can only go in one way and once fully inserted should be almost flush with the GPD Pocket 4.
Refit the two screws to either side of the module. Once securely in place, the module will be flush with the GPD Pocket 4.
You can read more about the modular ports for the GPD Pocket 4 on their respective URLs: KVM, RS-232, 4G LTE and Micro SD Card.