RONGDAXING TECH via Amazon has for Prime Members: Lvetek Wall Outlet Surge Protecter w/ USB Ports (3x USB-A, 1x USB-C) on sale for $9.98. Shipping is free.

About this product:

• Multi-plug wall outlet extender has 5 outlets, plus 4 USB Ports
• USB charges 5V 4.2A shared rating
  • USB A port up to 2.4A
  • USB C port up to 3A MAX
• 1680 joules surge protector
• 3 complementary Surge Protection Circuits, TVS(transient voltage suppressor) MOV(metal oxide varistor) GDT(gas discharge tube) combined with fire-resistant casing (up to 1382℉)
• Can secure it on duplex outlet with screw included
• ETL Certified