--- product_id: 23383322 title: "CORSAIR RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply" brand: "corsair" price: "$503.58" currency: USD in_stock: true category: "Corsair" url: https://www.desertcart.us/products/23383322-corsair-rmx-series-rm850x-850-watt-80-gold-certified-fully store_origin: US region: United States of America --- # 850W peak power 80+ Gold efficiency Fully modular cables CORSAIR RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply **Brand:** corsair **Price:** $503.58 **Availability:** ✅ In Stock ## Summary > ⚡ Power up with precision and silence — the RM850x means business. ## Quick Answers - **What is this?** CORSAIR RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply by corsair - **How much does it cost?** $503.58 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/23383322-corsair-rmx-series-rm850x-850-watt-80-gold-certified-fully) ## Best For - corsair enthusiasts ## Why This Product - Trusted corsair brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Silent but Deadly:** Zero RPM fan mode keeps your workspace whisper-quiet during low to medium loads. - • **Power Your Ambition:** 850 watts of reliable, high-performance power to fuel your next-level build. - • **Built to Last a Decade:** Premium Japanese capacitors and a 10-year warranty ensure your investment stands the test of time. - • **Clean Build, Clean Desk:** Fully modular design lets you customize cables for a sleek, professional setup. - • **Gold Standard Efficiency:** 80 PLUS Gold certification means less heat, lower energy bills, and eco-conscious computing. ## Overview The CORSAIR RMX Series RM850x is an 850-watt, 80 PLUS Gold certified power supply featuring 100% Japanese 105°C capacitors for exceptional reliability. Its fully modular design simplifies cable management, while the Zero RPM fan mode ensures near-silent operation under typical loads. Backed by a 10-year warranty, it’s engineered for high-performance PC builds demanding efficiency, durability, and clean aesthetics. ## Description Corsair RM850x High Performance Power Supply. Corsair RMx series power supplies give you extremely tight voltage control quiet operation Gold-certified efficiency and a fully modular cable set. Built with all Japanese 105 C capacitors theyre a great choice for high performance PCs where reliability is essential. 80 PLUS Gold efficiency reduces operating cost and excess heat and Zero RPM fan mode ensures virtual silence at low and medium loads. And the fully modular DC cables make builds and upgrades easy with clean great-looking results. ## Features - 80 PLUS Gold certified: High efficiency operation for less excess heat and lower operating costs - 100% All Japanese 105 capacitors: Premium internal components ensure solid power delivery and long term reliability - Zero RPM Fan Mode: Virtually silent operation at low and medium loads - Fully Modular: Make your builds and upgrades easy, with clean, great-looking results - Ten year warranty: Your guarantee of reliable operation that will last across several system builds ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B015YEI8JG | | Best Sellers Rank | #1,909 in Computer Power Supplies | | Brand | Corsair | | Built-In Media | rm850x | | Compatible Devices | Personal Computer | | Connector Quantity | 6 | | Connector Type Used on Cable | ATX, EPS | | Cooling Method | Air | | Customer Reviews | 4.7 4.7 out of 5 stars (535) | | EU Spare Part Availability Duration | 10 Years | | Fan Size | 135 Millimeters | | Form Factor | ATX12V | | Global Trade Identification Number | 00843591050821 | | Item Dimensions | 7.08 x 3.38 x 5.9 inches | | Item Part Number | CP-9020093-NA | | Item Weight | 4.4 Pounds | | Manufacturer | Corsair | | Maximum Input Voltage | 264 Volts (AC) | | Mfr Part Number | CP-9020093-NA | | Minimum Input Voltage | 110 Volts (AC) | | Model Name | rmx series | | Model Number | CP-9020093-NA | | Number of Fans | 1 | | Output Wattage | 850 Watts | | Power Supply Design | Full Modular | | System Bus Connector Type | ATX | | UPC | 843591050821 | | Unit Count | 1.0 Count | | Upper Temperature Rating | 50 Degrees Celsius | | Wattage | 850 watts | ## Product Details - **Brand:** Corsair - **Compatible Devices:** Personal Computer - **Connector Type:** ATX, EPS - **Cooling Method:** Air - **Form Factor:** ATX12V - **Item Weight:** 4.4 Pounds - **Item dimensions L x W x H:** 7.08 x 3.38 x 5.9 inches - **Model Name:** rmx series - **Output Wattage:** 850 Watts - **Wattage:** 850 watts ## Images ![CORSAIR RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - Image 1](https://m.media-amazon.com/images/I/71BK8VRpfIL.jpg) ![CORSAIR RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - Image 2](https://m.media-amazon.com/images/I/71moaM1EDeL.jpg) ![CORSAIR RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - Image 3](https://m.media-amazon.com/images/I/71-x2R7wUzL.jpg) ![CORSAIR RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - Image 4](https://m.media-amazon.com/images/I/71B0uH4BonL.jpg) ![CORSAIR RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - Image 5](https://m.media-amazon.com/images/I/71R-6dEBdLL.jpg) ## Frequently Bought Together - CORSAIR RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - SAMSUNG 990 PRO SSD NVMe M.2 PCIe Gen4, M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and Heavy Duty Workstations, MZ-V9P2T0B/AM - CORSAIR Vengeance DDR5 RAM 32GB (2x16GB) 6000MHz CL30-36-36-76 1.40V Intel XMP Desktop Computer Memory - Black (CMK32GX5M2B6000C30) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/23383322-corsair-rmx-series-rm850x-850-watt-80-gold-certified-fully](https://www.desertcart.us/products/23383322-corsair-rmx-series-rm850x-850-watt-80-gold-certified-fully) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-14*