This article covers Corsair RM1000e (2025) 12V-2x6ケーブル付き完全モジュラーATX電源.

Overview

Corsair RM1000e (2025) is a fully modular 1000W power supply that supports ATX 3.1 and PCIe 5.1 standards. Certified Cybenetics Gold, it offers high efficiency and low noise operation. The unit includes a native 12V-2x6 cable for direct connection to modern high-end graphics cards, eliminating the need for adapter cables. Its 120mm rifle bearing fan maintains quiet operation even under heavy load, making it a strong choice for silent PC builds. Positioned in the upper-mid range, the RM1000e delivers excellent value for a 1000W unit with modern compliance. It is suitable for gamers and creators who require stable, efficient power for flagship components. Corsair’s reputation for reliability and robust protection features further solidify this PSU as a solid long-term investment.

Compatibility Guide

This power supply conforms to the standard ATX form factor and fits most ATX cases. With a depth of just 140mm, it is relatively compact, leaving extra room for cable management even in mid-tower cases. Form factor: ATX Connector inventory: 24-pin ATX main, 2x 4+4-pin EPS, 1x 6+2-pin PCIe, 1x 12V-2x6 (12+4-pin) 600W cable, 1x dual 6+2-pin PCIe cable, 6x SATA, 2x PATA Two EPS cables allow compatibility with high-end motherboards that require extra CPU power (e.g., 8+4 or 8+8 pin). The included 12V-2x6 cable works directly with GeForce RTX 40/50 series and upcoming GPUs. Legacy PCIe 6+2 connectors are also provided for older cards.

Product Info

The Corsair RM1000e (2025) launched in 2025 as an ATX 3.1-ready power supply targeting the enthusiast segment. It sits in the mid-to-high tier, offering 1000W capacity with Cybenetics Gold efficiency. Warranty details vary by region; check Corsair’s official site for the exact coverage. Rated wattage: 1000W Efficiency: Cybenetics Gold (87-90%+ efficiency at typical loads) ATX version: ATX 3.1 (PCIe 5.1 compliant) Fan: 120mm rifle bearing, semi-passive not supported but low-noise curve Capacitors: 105°C industrial-grade Modular: Fully modular cabling * Dimensions: 150mm (W) x 86mm (H) x 140mm (D)

Best Use Cases

High-end gaming PC builders: With 1000W and a native 12V-2x6 cable, this PSU easily powers an RTX 4080 Super or RTX 5090 plus a flagship CPU. It leaves headroom for future upgrades. However, for mid-range GPUs, it is overkill. Silence-conscious users: The fan curve is tuned for low noise even at full load. The fully modular design reduces clutter and improves airflow, contributing to quieter operation. Ideal for home office or late-night gaming. * Workstation or long-term reliability: 105°C capacitors and ATX 3.1 transient handling ensure stable power for sustained creative workloads or server-like usage. For extreme multi-GPU setups or heavy overclocking, consider a 1200W+ unit.

Things to Consider

The RM1000e lacks a semi-passive (zero RPM) fan mode; the fan always spins at a low speed. In practice, it remains very quiet due to the optimized fan curve, but users expecting fan stop at idle may prefer a competing model. Additionally, 1000W is ample for most single-GPU systems, but if you plan to run an RTX 5090 with a heavily overclocked Core i9-14900K and multiple peripherals, a 1200W unit offers more safety margin. Competitors like Seasonic Focus GX-1000 and be quiet! Straight Power 12 1000W are worth comparing, but the Corsair RM1000e stands out with native ATX 3.1 support and included 12V-2x6 cable. ## FAQ
Q: Does this PSU support ATX 3.0 or ATX 3.1? A: It fully complies with ATX 3.1, including PCIe 5.1 compatibility. The 12V-2x6 cable improves physical connection reliability over the earlier 12VHPWR design, reducing the risk of melting or loosening. Q: Will this fit in a compact mini tower case? A: With a depth of only 140mm, it fits most standard mid-tower and many compact ATX cases. Always check your case’s maximum PSU length before purchasing, but clearance issues are uncommon. Q: Is 1000W enough for a future RTX 5090 build? A: Yes, assuming the total system draw stays under ~800W. With a 600W TGP GPU and a 250W CPU, there is enough headroom. If you plan heavy overclocking or extensive storage, stepping up to 1200W is advisable.

Product Disclosure (Amazon)

  • Manufacturer: CORSAIR
  • ASIN: B0FLG369BK
  • Note: This article covers a manufacturer-made product based on Amazon listing details.