WPCC - Wonder Protected Dual Computer Cord, is a high quality, high level rewireable Surge Protector plug (Still A Legend), fitted to a standard dual computer cord (for your convenience) guarding the computer/s (UPS, Printer or other devices) connected to it. The proprietary designed circuitry performs a health check of the socket it is plugged into for correct grounding (earthing), which is an important requirement for effective surge protection.