This article covers Corsair RM1000x 80PLUS GOLD認証 1000W静音電源ユニット.

Overview

The Corsair RM1000x is a 1000W fully modular power supply with 80PLUS Gold certification. It features Japanese 105°C-rated capacitors for long-term reliability and a Zero RPM Fan Mode for silent operation under light loads. Designed in the standard ATX form factor, this PSU is well-suited for high-end gaming PCs and workstations. With a 7-year warranty, the RM1000x remains a solid choice for builders who prioritize stability and quiet operation.

Compatibility Guide

The RM1000x conforms to the standard ATX form factor, fitting into most PC cases that support ATX PSUs. It includes a 24-pin main power connector, EPS 4+4-pin CPU connector, multiple SATA power connectors, and a floppy connector. The fully modular cable design allows you to detach unused cables, keeping the interior clean. While the 1000W capacity is enough for a single high-end GPU like the RTX 4080 or RX 7900 XTX, users with RTX 4090/5090 class cards should note that the unit lacks a native 12VHPWR connector; a GPU-provided adapter or a separate cable (if available) will be necessary.

Product Info

Released around 2015 and still widely sold, the RM1000x occupies the mid-to-high-end segment in the PSU market. Its 1000W output, 80PLUS Gold efficiency, and Japanese capacitors form the core of its value proposition. The included 135mm rifle-bearing fan is tuned for quiet operation, and the 7-year warranty provides peace of mind for long-term use. Pricing sits around the ¥22,000–¥25,000 range, offering competitive cost-per-watt against comparable units.

Best Use Cases

High-end gaming builds: Ideal for systems pairing an RTX 3080/4070-class GPU with a Core i7 or Ryzen 7 CPU. The 1000W overhead ensures stable power delivery during demanding gaming sessions. Workstation and multi-GPU configurations: Sufficient capacity for multiple drives and expansion cards. The full modular design simplifies cable management in large cases. * Quiet PC enthusiasts: The Zero RPM Fan Mode means the fan stays off under low-to-medium loads, keeping the build virtually silent during normal desktop or office use.

Things to Consider

The RM1000x was launched in 2015 and does not support the ATX 3.0/3.1 standard or a native 12VHPWR connector. Users building with RTX 4090/5090 class GPUs must rely on an adapter cable. Additionally, some compact ATX cases may have tight clearance for the 160mm depth of this PSU. Competitors like the Seasonic Focus GX-1000 and EVGA SuperNOVA 1000 G7 offer similar specifications, but the RM1000x remains competitive thanks to its proven track record and long warranty.

Product Disclosure (Amazon)

  • Manufacturer: CORSAIR
  • ASIN: B0190M0DS2
  • Note: This article covers a manufacturer-made product based on Amazon listing details.