The Pure Power 10,000 mAh 35W PD Power Bank has a 10,000 mAh/37Wh rechargeable lithium battery with one Type-C Input/Output port of 35W and one USB-A Output Port of 20W. It also includes an integrated cable with Type-C tip that can be both input and output at 35W charging speed. The power bank itself can be recharged through integrated cable or your own Type-C cable. Type-C Port & Tip: 5V/3A, 9V/3A, 12V/2.92A, 15V/2.33A, 20V/1.75A (35W max); USB-A Output: 5V/3A, 9V/2.22A, 12V/1.67A (20W max). It supports Apple and Samsung fast charging, Qualcomm Quick Charge, and USB-C Power Delivery for high-speed charging to virtually any Type-C device. Power banks are permitted in carry-on luggage only and at the discretion of TSA agents. Please charge the power bank before initial use.