This USB Charger from Tripp Lite(R) by Eaton(R) features 2 USB-C(R) and 2 USB-A ports for quickly and safely charging your mobile devices. Plug the charger into any NEMA 1-15R, NEMA 5-15R or NEMA 5-15/20R AC outlet to ensure your laptop, smartphone, tablet, smart watch, earbuds, handheld gaming device, and other USB devices charge at their fastest possible speed. The compact unit supports up to 100 watts for charging when all 4 ports are being used simultaneously. The USB-C(R) Power Delivery port, when used alone, supports power output up to 20 volts 5 amps (100 watts), which is more than sufficient for charging and powering nearly any mobile device, such as a MacBook(R) or Chromebook(TM). This USB wall charger is designed using GaN technology, which has a higher power density than silicon and provides higher efficiency than standard USB-C(R) fast chargers. It also stays cool during operation, despite its small size, meaning it won't get hot while charging your device. The product is UL(R) listed for worry-free charging of devices. The charger features auto-sensing technology that automatically adjusts to your devices' appropriate power level, ideal for fast-charging tablets and e-readers. The unit protects against overheating, overcurrent, overcharging, and short circuits. In fact, it stops charging as soon as your device's batteries are at full capacity.