Cooler Master GPU Shield Hits China: Active Connector Monitor Backs RTX 4090 Builders

Cooler Master has brought its GPU Shield inline “active connector monitor” to China, listing the adapter on JD.com for 359 RMB (about $53). This is the first time the connector-protection technology is sold separately to buyers who don’t own a Cooler Master power supply. The device installs between an existing PSU cable and the GPU’s 16-pin 12VHPWR power socket, monitoring current on individual pins in real time and triggering a buzzer alarm before uneven loading can overheat the connector. It includes a three-year warranty with full compensation if the connector melts while in use. No Western launch date or price was announced.