Corsair RM1000e 1000W ATX Power Supply

Corsair RM1000e | Gold-Certified ATX 3.1 Power Supply

The Corsair RM1000e power supply unit 1000 W 24-pin ATX ATX Black delivers reliable, high-efficiency power for demanding PC builds. With ATX 3.1 certification and Cybenetics™ Gold efficiency, it supports next-gen GPUs and CPUs while maintaining quiet operation in a compact 140 mm form factor.

Key Specifications

ATX 3.1 Certified for Next-Gen Components

The RM1000e meets the ATX 3.1 standard, ensuring stable power delivery for modern GPUs that demand high burst currents. This certification means the PSU can handle rapid power fluctuations without compromising system stability, making it ideal for gaming rigs with high-performance graphics cards.

Fully Modular Design for Clean Builds

With fully modular cabling, you connect only the cables your system needs. This reduces clutter inside your case and improves airflow. The included native 12V-2×6 GPU cable supports up to 600 W for modern graphics cards, while multiple 8-pin PCIe connectors cover most GPU configurations.

Gold Efficiency and Low Noise Operation

Cybenetics™ Gold certification guarantees up to 90% efficiency under typical loads, reducing wasted energy and heat output. The 120 mm rifle bearing fan uses a specially calculated curve to keep noise minimal, even during heavy use. Silent mode allows fanless operation at low to medium loads for near-silent computing.

Built for Reliability and Longevity

Industrial-grade 105°C capacitors and a resonant LLC topology with DC-DC conversion provide consistent, clean power. The PSU supports Modern Standby for instant wake-from-sleep performance and better efficiency at low loads. With a 100,000-hour MTBF rating, it’s engineered for long-term, trouble-free operation.

Box Contents

• Corsair RM1000e power supply unit
• 12V-2×6 GPU cable (600 W)
• Multiple PCIe cables (6+2 pin and 12+4 pin)
• Fully modular cables for motherboard and storage
• UK Type G power cable
• Mounting screws
• User manual

Check before you buy

• Confirm your case has at least 140 mm depth for PSU installation
• Verify your GPU requires a 12V-2×6 connector and supports PCIe 5.1
• Check if your motherboard uses a 24-pin ATX and 8-pin EPS connector
• Ensure your power outlet provides Type G plug compatibility

Frequently Asked Questions

Q: Is this PSU compatible with PCIe 5.0 GPUs?

A: Yes, the RM1000e includes a 12V-2×6 GPU cable designed for PCIe 5.1 and backwards compatible with PCIe 5.0 cards.

Q: Can I use this PSU in a small form factor build?

A: The 140 mm length fits many compact cases, but confirm your case supports ATX PSUs before purchasing.

Q: Does the fan run constantly?

A: No, silent mode allows fanless operation at low to medium loads; the fan only spins up when needed.

Q: What efficiency rating does this PSU have?

A: It’s Cybenetics™ Gold certified, achieving up to 90% efficiency under typical operating conditions.

Q: Is the warranty valid in the UK?

A: Yes, it includes UKCA certification and a 7-year manufacturer warranty valid in the UK.

The Consultant’s Verdict & Warranty

The Corsair RM1000e power supply unit 1000 W 24-pin ATX ATX Black suits enthusiasts building high-end gaming or content creation PCs who need reliable, efficient power with modern GPU support. Its ATX 3.1 certification, fully modular design, and quiet operation make it a strong choice for clean, high-performance builds. Covered by the standard Manufacturer Warranty.