Drivers are small pieces of software that are required to allow your PC to communicate via USB with the generator(s). They are usually required for all external devices that connect to a PC.
The CP210x USB to UART Bridge Driver is required to communicate with any Spooky2-XM generator model.
The PL-2303 USB-to-Serial driver is required if you’re using a UDB1108S generator, or you’re running both models in your Spooky2 rig. If you don’t own a USB1108S, you can click the Cancel button in its driver installer window.