Logitech G G512 - USB Plug Information; Pass-through USB 2.0 Port

6 English
USB PLUG
The G512 gaming keyboard features one pass-through USB 2.0 port.
USB
You must connect both USB cables in order to use the pass-through USB port.
NOTE: You can connect USB 3.0 devices to the pass-through port, but it will only provide the transfer
and charging rate of a USB 2.0 port.