Description
Product Overview
The Corsair RMx 1000W ATX 3.1 power supply combines Gold‑certified 91% efficiency with a fully modular cable system, delivering clean, stable power for high‑performance PCs. Housed in a sleek black chassis, it features embossed low‑profile cables, a native 12V‑2×6 GPU connector, and robust internal components designed to handle transient spikes from PCIe 5.1 devices. Weighing just 3.9 lb, its compact dimensions (2.3 × 3.39 × 5.91 in) fit easily into most cases.
Usage
Designed for enthusiast gamers, content creators, and professional workstations, the RMx 1000W excels in environments that demand continuous high power draw, such as multi‑GPU setups, 4K rendering, and VR gaming. Its low‑noise fan operation ensures a quiet workspace, while the modular cabling lets builders route only the cables they need, improving airflow and aesthetics. 
Why Choose Us
Corsair’s reputation for durability and performance backs the RMx series. Each unit undergoes rigorous testing to meet ATX 3.1 standards, guaranteeing compatibility with the latest CPUs and GPUs. The Gold certification reduces electricity costs and heat output, extending component lifespan. With a 10‑year warranty and a 4.7‑star rating from over 1,300 customers, confidence in reliability is built into every purchase.
Key Features
- Fully modular design for clean builds and optimal airflow.
- 91% Gold efficiency lowers power consumption and heat.
- ATX 3.1 compliance supports PCIe 5.1 and transient spike protection.
- Native 12V‑2×6 connector eliminates adapters for the newest GPUs.
- Embossed low‑profile cables with combs for easy routing and a premium look.
FAQ
Is the RMx 1000W compatible with the latest RTX 4090?
Yes, the native 12V‑2×6 connector is designed for the power requirements of RTX 4090 and similar high‑end graphics cards without needing adapters.
What does Gold‑certified efficiency mean for my electricity bill?
Gold certification guarantees at least 91% efficiency at typical loads, meaning less wasted energy as heat and lower overall power costs.
Can I use this PSU in a small form‑factor case?
The RMx 1000W measures 2.3 × 3.39 × 5.91 in, fitting most ATX and micro‑ATX cases, though very compact mini‑ITX builds may require careful cable planning.
Does the modular cable system affect warranty?
No, the modular cables are included with the unit and are covered under the same 10‑year warranty as the PSU itself.
How does ATX 3.1 improve system stability?
ATX 3.1 introduces stricter voltage regulation and transient response specifications, ensuring stable power delivery during sudden load changes, which is critical for modern high‑performance components.








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