GaN - The new technology is here
GaN is a new semiconductor material that offers significantly higher efficiency than original chargers. As a result, we have a charger with an output power of up to 65 W, which is tens of percent smaller than conventional chargers, which you typically get for laptops. The dimensions of this 65W charger are only 3.1 x 3.1 x 5.6 cm, while Apple's equally powerful 61W adapter measures 7.2 x 7.2 x 2.8 cm, that is twice the size.
The charger offers 1 USB-C output and the package includes a 1 m USB-C cable. The charger can be used to charge virtually any current phone or laptop supporting charging from the Type-C connector.
Output parameters: 5V = 3A 15W, 9V = 3A 27W, 10V = 5A 50W, 12V = 3A 36W, 15V = 3A 45W, 20V = 3.25A 65W max