XPG Core Reactor III Gold PSUs with Xtreme Power Guard

Noah Miller 10/28/2026

When building a high-performance PC, power delivery isn’t just about wattage; it’s about absolute reliability. Enter XPG with the Core Reactor III Gold, a modular power supply line designed not just to deliver power, but to guarantee it with cutting-edge monitoring technology.

This new line introduces the Xtreme Power Guard system, transforming standard power supplies into intelligent power managers. At the heart of this innovation is a real-time monitoring system that tracks current across the 600W-rated 12V-2×6 connector. This oversight ensures that your components receive exactly what they need, preventing potential stress and ensuring longevity.

The safety features are designed to be assertive. An orange LED instantly signals any current imbalance, while flashing red LEDs and automatic shutdowns act as immediate safeguards against overcurrent conditions. Furthermore, the connector itself features color-coding, giving builders a clear visual confirmation that everything is seated perfectly during installation.

Beyond smart protection, the Core Reactor III Gold adheres strictly to the latest standards, operating under ATX 3.1 specifications. This compliance means the PSU can handle power excursions up to 235% of its rated capacity for 100 milliseconds, giving system stability even under extreme load.

Under the hood, efficiency is paramount. The unit is rated at 80 Plus Gold efficiency, supported by robust engineering choices, including Japanese 105°C main capacitors and a sophisticated 135mm fluid dynamic bearing fan. This combination of components ensures peak performance with exceptional thermal management.

XPG delivers flexibility and peace of mind through its modular design, complete with fully modular cables and eight comprehensive electrical protection features across the entire range. Available in 750W, 850W, and 1000W capacities, this line is XPG’s debut commercial offering featuring active 12V-2×6 monitoring, backed by a reassuring 10-year limited warranty.