Review on 🔌 AILKIN USB Wall Charger Block, 2.1A Multiport Fast Charging Power Brick Cube Plug Base Adapter for iPhone, Samsung Galaxy, Huawei, HTC, LG & More Smart Devices by Mark Hart

Works great and I've checked the voltage is ok. I test all chargers as they have damaged hardware in the past with a faulty charger. Experience has taught me that it is not good to assume that all chargers are USB compliant. I recently ordered a couple of dual port chargers that turned out to be junk so I ordered a couple of other high end chargers. Rubbish looked like they are from the side. This was only superficial as they were heavily overloaded and a hazard to equipment. The video is my review of the Ailkin charger which works great. The USB specification is for 5V, no higher than 5.25V and no lower than 4.4V (for USB and USB2, USB 3 can be a little lower). The problems I've encountered are related to surge chargers. Both Ailkin dual port chargers comply with the USB specification.