Corsair RMx Shift White Series, RM850x Shift White, 850 Watt, 80 PLUS GOLD Certified, Fully Modular Power Supply – (R-41178250)
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About Corsair RM850x Shift White Desktop PSU
| Category | Details |
|---|---|
| Output Power & Rails | Total power: 850 W. +12 V rail: 70.8 A (≈ 849.6 W), +3.3 V & +5 V rails: 20 A each with combined 150 W, +5Vsb: 3 A / 15 W. |
| Input / Compatibility | Input voltage: 100–240 V AC; Input current: 5–10 A; Frequency: 47–63 Hz. Compatible with ATX 3.1 / ATX12V 3.1 systems. |
| Efficiency & Certification | 80 PLUS Gold certification, Cybenetics-certified for efficiency, lower heat and noise. |
| Cooling & Noise | 140 mm fan with fluid dynamic bearing; Zero-RPM mode under low/medium load for near-silent operation. |
| Build Quality & Components | Uses 100% industrial-grade Japanese electrolytic capacitors rated at 105 °C — enhances reliability and longevity. |
| Form Factor & Compatibility | ATX PSU form factor. Fits in PC cases that support standard ATX PSU layout. Requires case width of at least 210 mm for proper cable routing due to side-panel modular interface. |
| Connectors & Modular Cables | Uses CORSAIR Type 5 Gen-1 Micro-Fit modular cables. Includes standard 24-pin ATX, EPS (4+4) CPU cables, PCIe 6+2 / 12V-2×6 GPU cables (for modern GPUs), SATA power connectors, Molex (PATA) connectors. Exact connector count may vary depending on version. |
| Protections & Safety | Includes protections such as Over Voltage Protection (OVP), Over Current (OCP), Over Power (OPP), Over Temperature (OTP), Short Circuit Protection (SCP), ensuring safe operation under load. |
| MTBF & Warranty | Mean Time Between Failures (MTBF): ~100,000 hours. Backed by a 10-year manufacturer warranty. |
| Physical Dimensions & Colour | Standard ATX PSU dimensions (approx. 160 × 150 × 86 mm). Colour: White (for the “Shift White” edition). |
One of the standout attributes of the Corsair RM850x Shift White Desktop PSU is its 80 PLUS Gold efficiency certification, meaning it delivers power with up to ~90 % efficiency under typical loads.
This helps reduce wasted energy, lower heat generation, and improve overall energy efficiency — all beneficial for both performance and long-term electricity costs.
The Corsair RM Series Desktop PSU is also certified under the latest ATX 3.1 standard, making it future-ready and compatible with modern motherboards and GPUs — including those requiring PCIe 5.0 / 12V-2×6 (12VHPWR) connectors, common with high-end graphics cards.
The fully modular cable design (using CORSAIR’s Type 5 Micro-Fit connectors) gives you the flexibility to connect only the cables you actually need.
This not only simplifies cable management but also improves airflow inside the case.
The “side-panel modular interface” is a distinct design choice of the Shift series: instead of cables emerging from the rear, they connect sideways — helping build cleaner-looking rigs and making cable routing easier, especially in cases with side-access cable covers.
Cooling and noise control are thoughtfully engineered.
A 140 mm fluid-dynamic-bearing fan ensures efficient airflow while maintaining longevity and low vibration.
More importantly, the Corsair 80 Plus Gold Fully modular PSU supports Zero-RPM mode — if the system load is low or idle, the fan stops completely, resulting in near-silent operation.
This is a big plus for quiet builds, home offices, or media PCs where minimal noise is preferred.
Reliability is another strong suit.
Internally, it uses 105 °C-rated Japanese capacitors, standard for high-end power supplies, which helps ensure stable voltage regulation, durability, and longevity even under continuous heavy loads or higher ambient temperatures.
On top of that, the Corsair White Shift Series Power Supply Unit includes multiple safety protections: over-voltage, over-current, over-power, short circuit, and over-temperature protections safeguard connected components against electrical faults.
Connector-wise, Corsair RM850x Shift White Desktop PSU offers wide compatibility: 24-pin ATX for motherboard power, two EPS (CPU) 8-pin (4+4) cables, multiple PCIe connectors (6+2 pin and a 12VHPWR 12-2×6 pin cable for latest GPUs), plenty of SATA power cables for drives, and Molex connectors for older peripherals or accessories — making it suitable for both modern and legacy components.
Physically, the Corsair 850 Watt Desktop PSU follows the standard ATX form factor, making it compatible with the vast majority of PC cases — though because of the side-facing modular interface, it’s recommended to use a case that offers at least 210 mm width clearance for cables.
Overall, the Corsair RM850x Shift White Desktop PSU combines robust power delivery, modern standard compliance (ATX 3.1, PCIe 5.0 ready), efficient and quiet operation, flexible modular cabling, and premium build quality.
These qualities make it a strong choice for gaming rigs, content-creation workstations, or any PC build where stable power, future-proofing and clean cable management matter.
Corsair – High-Performance PC Components, Gaming Gear & Custom Build Solutions
Corsair is one of the world’s top names in PC hardware and gaming/peripheral gear. Trusted by gamers, creators and PC-enthusiasts alike, Corsair offers a broad range of products — from memory modules and power supplies to gaming keyboards, mice, cooling solutions and full custom-build PCs. Their focus on performance, reliability and modular design makes Corsair a go-to brand for those building powerful and long-lasting systems.
About Corsair
Corsair was founded in 1994 in California and began its journey supplying cache and DRAM modules. Over the years the company expanded — evolving from memory specialists into a full-fledged PC hardware and gaming brand. Today Corsair develops and manufactures PC components, peripherals, cooling solutions, custom rigs and accessories aimed at enthusiasts, gamers and professionals. :contentReference[oaicite:1]{index=1}
Corsair Product Categories
Memory Modules (RAM & Storage)
Corsair’s high-performance DRAM memory modules are built for speed, stability and overclocking — perfect for gaming rigs, content creation PCs and heavy multitasking systems. They also offer SSDs and storage solutions for fast boot times and data handling. :contentReference[oaicite:2]{index=2}
PC Cases & Custom Builds
Corsair’s computer cases and chassis are designed with airflow, modularity and expandability in mind. From compact builds to high-end enthusiast PCs, their cases support modern GPUs, cooling systems and cable management. Corsair also offers custom/prebuilt gaming PCs for users who want a ready-to-use high-performance machine. :contentReference[oaicite:3]{index=3}
Power Supplies & Cooling Solutions
Reliable power and efficient thermal management are cornerstones of Corsair’s offerings. Their PSUs (power supply units) deliver stable and efficient energy for demanding builds, while their cooling lineup — including air coolers, all-in-one (AIO) liquid coolers and case fans — keeps temperature and noise under control. :contentReference[oaicite:4]{index=4}
Gaming & Peripherals — Keyboards, Mice, Headsets & More
Corsair’s gaming gear includes premium mechanical keyboards, responsive mice, immersive headsets and other accessories tailored for gamers, streamers and competitive players. These peripherals often come with customizable RGB, ergonomic design and reliable build quality. :contentReference[oaicite:5]{index=5}
Streaming & Creator Gear
Beyond just gaming, Corsair also caters to content creators and streamers through dedicated gear and accessories — from capture devices and streaming peripherals (via associated brands and subsidiaries) to stable hardware ideal for video editing, streaming, and creative workflows. :contentReference[oaicite:6]{index=6}
Why Choose Corsair
Corsair stands out due to its broad ecosystem, reliability, performance-focused design and long-term value. Whether you're building a high-end gaming rig, a content creation workstation, or a balanced everyday PC, Corsair provides components and peripherals that deliver consistent performance and great longevity.
- Comprehensive product range — from RAM to full systems
- Strong reputation among gamers and PC builders
- High-quality components suitable for overclocking and heavy workloads
- Reliable cooling and power delivery for stable builds
- Popular gaming peripherals with ergonomic and performance-focused design
- Good support for both gaming and content creation workflows
Ideal For Gamers, Creators & Power Users
Corsair gear fits a broad spectrum of users: competitive gamers, streamers, video editors, DIY PC builders, students, professionals and everyday users who value performance and reliability. With options across budgets and performance levels, Corsair remains a versatile and trusted choice in the PC hardware space.
