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Corsair

CORSAIR HX Series, HX850, 850 Watt, 80+ Platinum Certified, Fully Modular Power Supply

    • Based on 1,161 reviews
Condition: Used - Like New
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Availability: Only 1 left in stock, order soon!
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Arrives Jun 10 – Jun 14
Order within 8 hours and 41 minutes
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Size: 850 Watt


Style: HX


Pattern: Power Supply


Features

  • 80 plus Platinum runs cooler and uses less power than less efficient power supplies
  • Fully modular allows user to only use the cables they need for a cleaner looking build with better airflow
  • 10-Year Backed by CORSAIR legendary technical support and customer service
  • 135mm FDB fan with Zero RPM mode virtually silent operation at low loads
  • plus12V rail switch gives the user The choice of a single plus12V rail or multiple plus12V rails

Description

The Corsair HX Series gives you extremely tight voltages and virtually silent operation. With all Japanese capacitors, they're ideal for high performance PCs where reliability is essential. 80 PLUS Platinum efficiency reduces operating cost and excess heat, and together with the Zero RPM Fan Mode, gives you virtually silent operation.

Model Name: hx series


Brand: Corsair


Compatible Devices: Personal Computer


Connector Type: ATX files


Output Wattage: 850


Form Factor: ATX


Wattage: 850 watts


Cooling Method: Air


Item dimensions L x W x H: 5.9 x 7.1 x 3.39 inches


Item Weight: 4.29 Pounds


Brand: ‎Corsair


Series: ‎hx series


Item model number: ‎CP-9020138-NA


Item Weight: ‎4.29 pounds


Product Dimensions: ‎5.9 x 7.1 x 3.39 inches


Item Dimensions LxWxH: ‎5.9 x 7.1 x 3.39 inches


Color: ‎80+ Platinum


Manufacturer: ‎CORSAIR


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎January 5, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 10 – Jun 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great power supply that you can depend on.
Size: 850 Watt Style: HX Pattern: Power Supply
Corsair offers a wide range of power supplies, and the HX series are near the top of their quality spectrum. These are very efficient, work silent (no fan during normal operation), and overall are very good for the health of your PC in the long run. I personally purchase the HXi series for higher loads, and the competing EVGA Gold for others. HX series is in between the two, giving slightly better efficiency, trading off on size and price. There are basically three reasons to go for a platinum PSU. First the efficiency, however this would be my last reason in practice. Then the features, like modularity, and most importantly the build quality, which affects the warranty, and of course the power quality your motherboard and other components receive. The last one is very important if you want to keep a stable working PC for a long time. Going into details, the efficiency of 80+ Platinum PSU are peaked at 50% load, and 240V of power. To give some perspective, if you have a recent PC with an I7 or Ryzen processor (about 120W), and a decent GPU (let's say 1070 at also 120W regular 160W on load) your total load, including other peripherals will be a tad under 350W if you are not overclocking. If you get the HX750 model, you'd then be drawing about 380W from wall at 92% efficiency (with 120V). If you have the average US 12c/kWh rate for utilities, and use the PC for 8 hours of gaming a day, you'd be looking at a power bill at about $135 per year of usage. If you were to go with a 400W bronze PSU, the bill would go up to $150. That's why I don't recommend going to platinum PSU just for efficiency, but there are much better reasons. (Exceptions are if you're unfortunate to be in PG&E service zone with 45c / kWh rates, and need to use 4 GPUs for 24/7 machine learning tasks, or just crypto mining, then the bill differences would be in hundreds of dollars). The main advantage is the quality of the parts. Most PSU will work fine under moderate load with clean power coming from the wall. However things change under heavy load and/or power issues, especially brownouts, which will not be caught the surge protector. You'd want to avoid them, hence get a more expensive PSU. One way to measure the quality is looking at the warranty length, for example this one has 10 years, which tells a lot about how much Corsair believes in them as the manufacturer. The second advantage are the better features. Higher end PSUs, like this one will offer modularity, lots of connectors, a silent fan, and sometimes monitoring options. Believe me, modular PSUs are in a different league than the old style ones. For example I have a small PC as a router, which is cramped, but only needs a few connectors (since it only works as a basic router). Having a modular PSU saved a lot of room inside the small box. Also at the top of the line the HXi versions, which I personally prefer over the HX series, comes with a USB connector to the motherboard, which will allow you to monitor the power level of individual ports. This is very useful if you are into overclocking your system. I have built many PCs (some upgrades, some for friends), and Corsair is one of my go-to manufacturers for PSUs. These work well, has lots of features, and have great build quality. ... show more
Reviewed in the United States on August 24, 2017 by Sukru Tikves
    • The Platinum Standard in Power Supplies!
Size: 850 Watt Style: HX Pattern: Power Supply
If you're building a high-performance PC, you need a power supply that can keep up with your demands. That's where the CORSAIR HX850 comes in - this 850 Watt, 80+ Platinum certified, fully modular power supply is the platinum standard in power supplies. Let's start with the basics. The HX850 boasts an 80+ Platinum efficiency rating, which means it's able to deliver up to 92% energy efficiency, resulting in lower energy costs and less heat generation. With a fully modular design, you can customize the cables to your exact needs, ensuring a clean and clutter-free build. And with a 10-year warranty, you can trust that the HX850 is built to last. But what really sets the HX850 apart from the competition is its advanced features. With Zero RPM fan mode, the power supply is able to run silently under light loads, keeping your PC cool and quiet. And with Corsair Link software, you can monitor the power supply's performance and adjust its settings to your exact needs. Installation is a breeze with the HX850, thanks to its fully modular design and easy-to-follow instructions. And with a wide range of connectors and cables included, you can be sure that the power supply will be compatible with your build. Overall, I can't recommend the CORSAIR HX850 enough. If you're looking for a power supply that delivers top-of-the-line performance, advanced features, and a rock-solid warranty, the HX850 is the way to go. With its 80+ Platinum efficiency rating, fully modular design, and advanced features like Zero RPM fan mode and Corsair Link software, this power supply is the platinum standard in power supplies. ... show more
Reviewed in the United States on April 15, 2023 by Mister Blue Sky
    • Excellent PSU for 6700XT or 3070!
Size: 750 Watt Style: HX Pattern: Power Supply
I bought the HX750 to allow my PC to be more power efficient, as the original PSU, an EVGA 850GQ (which still works perfectly fine!) was in use for over 6 years and was slowly starting to show its age. The other side of this batch of upgrades included going from a Ryzen 7 3700X to a Ryzen 7 5800X, then a GTX 1080 to Radeon 6700XT, and then bumping from 16 GB 3000 Mhz C15 to 32 GB 3600 Mhz C18. This sucker has been running both under full load without overloading and runs unbelievably quiet while doing so, kudos to Corsair for that level of design. As an added bonus my PC has had significant improvements in overall power efficiency. The only thing I honestly didn't like was the price, a$40 price difference between the Gold rated RM750X and the HX750. But after seeing how much it improved my PC's power efficiency it's proven itself to be worth that extra $40. If you are looking for a decent 80+ Platinum PSU this is a strong contender despite the price. ... show more
Reviewed in the United States on August 4, 2022 by TechnoWiz
    • Pretty much perfect
Size: 1000 Watt Style: HXi Pattern: Power Supply
Big fan of Corsair's PSUs. Admittedly, this card is probably a bit overkill for my system considered I have a 4080 and not a 4090, but I figure the extra wiggle room is warranted either way. Only drawback is it's a larger size, so it's a tight fit in my H5 from NZXT, but still fits and performs perfectly. PSA: Don't worry if you smell a light burning smell for a few days after installing. It's perfectly normal and goes away after about a week of use. ... show more
Reviewed in the United States on April 18, 2023 by Amazon Customer
    • Goods solid performing power supply.
Size: 850 Watt Style: HX Pattern: Power Supply
Runs my desktop with a Ryzen 7 5800X3d, Nvidia RTX 4080, 280mm liquid CPU cooler, 6 case fans, 4 Nvme SSDs, 64 GB of RAM and case lights with ease. Fan is quiet and I hear nothing that others refer to as coil whine. Only thing is that it doesn't have the new 12 volt connector that is used on the Nvidia high end cards so you will need an adapter, which may not be a bad thing if your connector fails on your GPU, at least you will only have to replace the adapter harness if it damages the harness connector plug. ... show more
Reviewed in the United States on October 20, 2023 by Frank Mezo

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