About Corsair RM1000x Fully Modular Desktop PSU
| Category | Detailed Specification |
|---|---|
| Model Name | Corsair RM850x (RMx Series) |
| Total Power Output | 850 Watts |
| Power Efficiency | 80 Plus Gold Certified |
| ATX Compatibility | ATX Form Factor |
| Modular Cabling | Fully Modular Low-Profile Cables |
| Cooling System | 140mm Fluid Dynamic Bearing (FDB) Fan |
| Zero RPM Fan Mode | Supported – fan remains off at low to moderate loads |
| Fan Bearing Type | Fluid Dynamic Bearing for long lifespan |
| Operating Voltage Range | 100–240V |
| Power Protection Features | Over Current, Over Voltage, Under Voltage, Short Circuit, Over Temperature, Over Power |
| Continuous Output | Rated for continuous full-load delivery |
| EPS/PCIe Connectors | Multiple connectors for high-end GPUs/CPUs |
| Noise Level | Extremely quiet under typical loads |
| Components Quality | 100% Japanese 105°C Capacitors |
| MTBF (Mean Time Between Failures) | 100,000 hours |
| Sleeved Cables | Included for clean cable management |
| Size Dimensions | Standard ATX size design |
| Certifications | CE, FCC, TUV, RCM, CB |
| Usage Suitability | High-performance gaming rigs, workstations, professional builds |
At the heart of the RM850x lies an 80 Plus Gold efficiency rating that guarantees reduced energy consumption and minimal heat generation. This level of efficiency not only improves system performance but also enhances long-term reliability by reducing stress on internal components. Corsair ensures that every unit meets high-quality standards by using 100% Japanese capacitors rated at 105°C, providing superior endurance and power consistency even during continuous heavy loads.
One of the most appreciated features of this power supply is its fully modular cable design. By allowing users to attach only the cables they need, the RM850x contributes to significantly improved cable management. This results in cleaner builds, better airflow, and enhanced cooling efficiency inside the chassis. The flexible and low-profile cables included with the PSU further simplify installation for both novice and experienced builders.
Silence is a crucial factor for many PC enthusiasts, and the RM850x excels in this area thanks to its 140mm fluid dynamic bearing fan. This cooling system intelligently manages fan speed to maintain optimal temperatures without generating unnecessary noise. The Zero RPM Mode keeps the fan completely off during light and moderate workloads, ensuring silent operation during tasks such as web browsing, productivity work, or media playback. The fan only activates during high-demand scenarios, delivering robust cooling when required.
When it comes to stability and protection, the RM850x integrates multiple layers of hardware safeguards, including OVP, UVP, OCP, SCP, OTP, and OPP. These protections ensure that your system remains safe from power irregularities. Whether you are running a single GPU setup or powering a high-performance system with cutting-edge graphics cards, the RM850x remains consistent, stable, and dependable.
Designed to be compatible with modern components, this PSU includes ample EPS and PCIe connectors to support high-end GPUs, CPUs, and multi-component systems. This makes it particularly suitable for gaming rigs equipped with powerful graphics cards, as well as for creators who rely on heavy applications such as video editing, rendering, or 3D design.
Overall, the Corsair RM850x 80 Plus Gold PSU delivers a premium balance of efficiency, performance, silence, and reliability. It stands out as a top-tier choice for those who want a high-quality power supply that ensures system stability, long-term durability, and an ultra-quiet computing experience.

