Why are USB surge protectors not commonly used or widely available? Is the AC to DC transformer alone sufficient to provide protection from something like a nearby lightning strike? - Quora
Surge protector - Wikipedia
Eaton | Crouse-Hinds series | MTL MA3350 distribution board compact surge protector
Colorful varistors. Circuit board detail. Electronic components for surge protector. Diodes, red, blue and yellow voltage-dependent resistors on green PCB from dismantled uninterruptible power supply. Stock Photo | Adobe Stock
Outdoor Gas Tube Surge Protector Replacement PCB
Surge protectors explained | Eaton
How Surge Protectors Work | HowStuffWorks
Unusual Failure Mode of an APC Surge Protector | Kerry D. Wong