✓ At SIIG, we are proud of our products and service. Our products are of high quality and built to last. We provide 2 Year Warranty for our products and email support. Contact us thru if any issues arise. ✓ Broad Compatibility - This USB-C charger is compatible with laptops, tablets, smartphones, and mobile devices, such as MacBook Pro 16''/14''/ 13'', MacBook Air, iPad Pro/ Air, iPhone 14/13/ 12(Pro/ Pro Max/ Mini), Samsung Galaxy S22+/S22 Ultra/S21 Ultra, Note 20 Ultra/ Note 20/10/9, Huawei, Pixel and More. ✓ 4-in-1 Charger - This charger has 3x USB-C Ports and a single USB-A port. It delivers max charging power up to 28V/5A, single use on one USB-C, and 140W+45W+35W+18W while four ports are connected. ✓ Advanced GaN Pro Technology - THe Gallium Nitride (GaN) Technology increases the high power conversion rate of 95% and is more powerful, safer, and more durable. It also helps the charger to be 35% smaller than traditional chargers. Both help save energy and reduce carbon emissions. ✓ 240W Max Power - AC-PW1X11-S1 GaN fast charging block is a high-power output multi-port USB-C charger with a maximum output of 240W. It has 3x USB-C ports and 1x USB-A port, offering up to 4 devices charges simultaneously.