As graphics cards grow ever more power-hungry, the question of how to protect expensive hardware from the quiet dangers of electrical anomalies has become a genuine concern for builders and enthusiasts alike. Cooler Master has answered with the GPU Shield, a $50 adapter that sits between power supply and graphics card, watching each pin for irregularities and sounding an alarm when something goes wrong. Launched in the US following its CES 2026 debut, the device occupies a considered middle ground — more capable than a passive cable, far less demanding than a full monitoring station — offering