Corsair CP-9020271-NA RM1000x 1000W ATX 3.1 Power Supply

The Corsair RM1000x (CP-9020271-NA) is a 1000-watt fully modular power supply built to the ATX 3.1 standard, positioning it as a reliable foundation for modern high-performance desktops. ATX 3.1 compliance means the unit supports PCIe 5.1 signaling and is engineered to handle the transient power spikes that current-generation graphics cards can produce during sudden load changes. The inclusion of a native 12V-2x6 connector eliminates the need for adapter cables when powering the latest GPUs, providing a cleaner and more reliable direct connection from PSU to graphics card.

Corsair's fully modular design allows builders to attach only the cables their system requires, reducing internal clutter and improving airflow. The embossed cables paired with low-profile combs are designed for easier routing through tight cable management channels. The unit carries Cybenetics Gold certification with efficiency rated up to 91%, which means less energy is wasted as heat, contributing to quieter fan operation and lower running temperatures inside the case. At 2.3 x 3.39 x 5.91 inches and 6.9 pounds, the RM1000x fits standard ATX enclosures while delivering the wattage headroom needed for demanding CPU and GPU pairings in gaming, content creation, and workstation environments.