This is the ADAM elements GRAVITY Pro: a 100W 20000mAh power bank that can charge all your favorite devices, including your MacBook. It has a 1.2m braided cable, 1 USB and 2 x USB-C ports. It has a LED display that shows battery info.
The GRAVITY Pro comes with safety features built-in. It automatically shuts down if abnormal current and voltage is detected. Its ports have an output of 100W, 20W, and 22.5W. The LED display shows battery, fast charging, total discharge power and output/input status.[where to get it]