Gan Technology: Charge your MacBook, laptop, tablet, phone, or other USB-C devices quickly with this 140W charger; Smaller GaN charger with flip-out plug stays cool while delivering up to 140W Intelligent Charging: 140W EPR future-proofs your charging; USB C wall charger block detects and negotiates with USB-C devices for optimal charging; 16" MacBook Pro gets full 140W, while a phone may only need 15W