Sales Service Any problem with the product can be replaced or refunded within 12 months. If you have any questions, please feel free to contact us by email and we will reply within 24 hours.Please note that due to Apple system file upgrades and other reasons, Mag cables may not work on certain models. If you encounter any issues, please contact us and you can click on the "Ask" button on the right side of the seller's store. Strong Power to Support “M” Series Chip: PD 3.1 provide you a higher charging efficiency than PD 3.0 to meet the high-speed processing capacity of M1, M1 Pro, M1 Max, M2 chip. Complete Charging Protection:Sehonor exclusive X-Pulse technology electrophoretic protection, and prevents overheating for a 100% safe charging experience. Plus, this macbook charger provides higher efficiency while maintaining low surface temperature. Widely compatible:PD 3.1 protocol Compatible with Mac Book Pro 16, 15, 14, 13inch,New Mac book pro model(A2779,A2780),New Mac Book Air 13 "2021/2020/2019/2018, the Ipad Pro 12.9" / 11" 2020/2018 and the Ipad Air 10.9 "(2020) and all USB port - C equipment, laptops and smartphones,it can intelligently output 127W, 96W, 90W, 67W, 65W, 45W, 30W . Fast Charge Your Mac Book:140W / 28V / 5A max output and USB Power Delivery 3.1, you can full charge your 2021 Mac Book Pro 16 in only 1h 26 mins and charge it up to 50% in only 26 mins as fast as to full charge a cellphone. Notice: include USB C to Mag 3 Cable.