A 20V 7.5A charger, which provides 150W of power, with a 6.0mm x 3.7mm round pin is primarily used for various high-performance ASUS gaming and workstation laptops. This specific charger is commonly used for models in the ROG (Republic of Gamers) and TUF Gaming series, which require more power than standard laptops. ASUS ROG Strix Series: G531GT and G731GT , Zephyrus S15 and Zephyrus G15 / ASUS TUF Gaming Series: FX505GT, FX505DD, FX505DU, FX705DT, FX705GT, FX506LH, Vivo All-in-One models Pro 15 OLED (M6500XV) and X571 series.