This article covers CORSAIR RM1000x 2024年モデル PC電源ユニット 1000W.

Overview

The CORSAIR RM1000x (2024) is a 1000-watt fully modular ATX power supply designed for high-performance builds. It sits in the mid-high tier of Corsair's lineup, offering ATX3.1 and PCIe5.1 compatibility for the latest GPUs. With 80 PLUS Gold certification, it delivers excellent efficiency, and the fully modular cabling simplifies installation and cable management. A 10-year warranty backs its long-term reliability.

Compatibility Guide

This PSU uses the standard ATX form factor, fitting most mid-tower and full-tower cases. Its 140mm depth allows installation in compact ATX chassis as well. The unit supports ATX3.1, handling transient power spikes from modern CPUs and GPUs. It comes with a native 12VHPWR cable for direct connection to NVIDIA GeForce RTX 40-series cards, eliminating the need for adapters. Multiple PCIe 8-pin cables are also included for older GPUs. The fully modular design lets you use only the cables you need, reducing clutter.

Product Info

Launched in 2024, the RM1000x is priced around ¥22,000–¥24,000 (reference ¥22,626), offering strong value in the 1000W segment. It holds 80 PLUS Gold certification for high efficiency under typical loads. The 140mm fluid-dynamic bearing fan supports Zero RPM mode for silent operation at low loads, and a rear switch lets you manually control fan speed. All cables are detachable, and the unit is fully modular. Corsair backs it with a 10-year warranty.

Best Use Cases

  • High-end gaming: Perfect for PCs with an RTX 4080/4090 or future flagship GPUs. The included 12VHPWR cable ensures a clean, adapter-free connection. - Creator workstations: Reliable power for Ryzen 9 / Core i9 CPUs combined with professional GPUs. Ample headroom for multiple drives and expansion cards. - Long-term investment: With a 10-year warranty and robust build, you can carry this PSU to your next build. Its ATX3.1 compliance ensures forward compatibility.

Things to Consider

The 1000W capacity is overkill for mid-range systems (e.g., RTX 4060 + Core i5); consider the RM750x or RM850x for those builds. Only one 12VHPWR cable is included, so multi-GPU setups (rare) would require additional cables. The unit is ATX3.1, not backward compatible with ATX2.x cable sets—if you reuse custom cables, ensure they are ATX3.1 compatible. While 80 PLUS Gold is efficient, Platinum or Titanium models offer slightly better efficiency for 24/7 operation, though at higher cost. The fan control switch is manual; some users may prefer automatic PWM control.

Product Disclosure (Amazon)

  • Manufacturer: CORSAIR
  • Seller: Amazon.co.jp
  • Fulfilled by: Amazon.co.jp
  • ASIN: B0D46N2YM1
  • Note: This article covers a manufacturer-made product based on Amazon listing details.