Professional MacBook Pro 87W USB-C Power Adapter - Perfect to fast charge MacBook Pro 15 inch at full speed 87W. Compatible with any USB-C–enabled devices, optimized charging MacBook Pro 13 inch, MacBook 12 inch 2019, 2018, 2016, 2015, 2018 MacBook Air, 2018 iPad Pro 12.9, 11, Nintendo Switch and more USB Type C devices. 5A 6.6ft USB C to C Cable with Emark Chip - Why did your 87W MacBook Pro 15 inch charge slowly? Because usual cable is max through 3A, can't support 20V/4.35A/87W output. And your cable hasn't built-in Emark Chip to communicate with MacBook to pass full charging power 87W output. SZPOWER 5A USB C to C cable is built-in Emark Chip and made of thicker copper wire to support max 5A current and 100W power through to charge MacBook Pro 15 inch at full speed 87W. (USB-IF TID Number: 200, 000, 308) Full Charge MacBook Pro 15 inch in Only 1h 40 mins - Charging MacBook Pro 15 inch up to 50% in just 35 minutes(75% faster than others: 20%=35 mins), 75% in 1 hour, save your time if you in a hurry to go out.