SPD Signal Surge Protective Device,it boasts a bouble-function of static electricity protection and lightning protection.

SPD

Signal Surge Protective Device

,internally configured for a protection that quickly controls transient voltage and offering lightning protection of 600W/1500W for each wire, this product can prevent RS-232 serial port, reset hard ware or install any software and it can still assure normal communication.it boasts a bouble-function of static electricity protection and lightning protection.