A single cable for Power and Data
This USB-C� to USB-C cable is able to charge devices (PD) as well as transfer data extremely fast, with speeds of up to 10Gbps. The cable is equipped with an e-marker chip that enables connected devices to identify the capabilities of the cable. This ensures optimal performance from connected devices as well as the cable.

USB-C Power Delivery
USB-C Power Delivery is a powerful charging technology that enables fast charging and the charging of larger mobile devices such as a laptop. It can either fast charge a small device (such as a smartphone) up to 40% faster, or its enables the charging of larger mobile devices such as large tablets/ laptops.

It is a technique that uses specified voltage/power levels (5V, 9V, 12V - up to 20V) that enables the fast charging and high power outputs.
This works automatically due to a special APM-chip in the USB-C PD Xtorm products.