After a few months, both USB ports on one of the devices stopped working. However, it helped me determine that more than half of the outlet adapters I'd accumulated in my home over the years were also faulty.
Allocacoc PowerCube ExtendedUSB, 4 Outlets, 2 USB Ports, 5 ft Cable, Mounting Dock, Surge Protection, Childproof Sockets, ETL Certified - Blue
12 Review
Fellowes 10-Outlet Metal Split Surge Protector - 1,250 Joules, 6ft Cord in Black and Silver
12 Review
Black 6 Outlet Surge Protector Power Strip with Rotating Flat Plug, 15A 120V, 4ft Cord
12 Review
BESTTEN Wall Outlet USB Charger: Surge Protector with LED Night Light, 4 USB Ports, 6 AC Outlets - ETL Listed, White
12 Review
Xiaomi Power Strip Surge Protector 3 Sockets 3 USB Black
26 Review
Extender Xiaomi Mi Power Strip 3, XMCXB01QM, 3 sockets, 10A / 2500 W white 1.8 m
26 Review
4 Outlet Power Strip with 3 USB Charger Ports and 5ft Braided Cord π‘ - Flat Plug, Wall Mountable Desktop Charging Station for Home, Office, and Cruise Ship use.
12 Review
Extender Xiaomi Mi Power Strip 3, XMCXB01QM, 3 sockets, C/C, 10A / 2500 W white 1.8 m
30 Review