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G.Skill MB850G PSU, 80 Plus Gold, Fully Modular ATX Power Supply 850 Watt, Compact 140mm Size, 120mm Cooling Fan, Gaming Computer Power Supply

  • Based on 183 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jun 4
Order within 22 hours and 36 minutes
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Size: 850 Watts


Features

  • ATX 850W PSU with continuous power supply. A solid foundation for a gaming rig, media creator, workstations, and even for next-generation system build.
  • 80 PLUS Gold certified: ensures up to 90% power efficiency at 50% load, lowering energy consumption, heat, and noise. Compliance with Intel ATX 12 Volt 2.5 and EPS 12V 2.92 standards.
  • Fully Modular: modular flat cables increase airflow, reduce clutter, and improve overall efficiency and thermal performance.
  • Heavy protection including OVP, UVP, OCP, OPP, SCP and OTP. Active clamp and DC-to-DC converter design to improve output voltage stability.
  • Quiet and compact: the gaming power supplys 150mm long and 140mm-wide dimensions make it easily fit into most computer cases. Virtually inaudible120mm fan superior cooling performance.
  • Connectors: 1x 20+4pin/ 1x 8pin CPU/ 1x 4+4pin CPU/ 6x 6+2pin PCIe/ 9x SATA/ 3x 4pin Molex/ 1x Floppy.
  • 5 Year Warranty and 24/7 customer service, if you have any suggestions or if there are any problems, feel free to send us a message.

Model Name: MB850G


Brand: G.Skill


Compatible Devices: Personal Computer


Connector Type: ATX, Floppy


Output Wattage: 850


Form Factor: ATX12V / EPS12V


Wattage: 850 watts


Cooling Method: Air


Item dimensions L x W x H: 5.9 x 5.5 x 3.3 inches


Item Weight: 6.3 Pounds


Product Dimensions: 5.9 x 5.5 x 3.3 inches


Item Weight: 6.26 pounds


Manufacturer: G.SKILL


Item model number: GPX850G


Is Discontinued By Manufacturer: No


Date First Available: August 11, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 4

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


  • Excellent Regulated Power Supply
Size: 850 Watts
Have had it connected to a Gigabyte X670 Aorus Elite AX MB, AMD 7900 processor and NVidia RTX 3060 12GB video card for a little over a month. Been constantly monitoring voltage with HWinFO64 to the CPU, GPU and memory. Rock solid from idle to full load; always within span of <10 milivolts. Quality of the cable ends is impressive... fit snug with no side play, snap in and remove easily at both ends. Purchased this on a rebound from a DOA Enermax PSU which also had ill-fitting cable ends that didn't want to lock, or would lock and then couldn't easily remove. Plenty of supplied cabling for hookups and the fan is quiet. It's a keeper. ... show more
Reviewed in the United States on January 4, 2024 by Waldorf

  • G.SKILL PSU
Size: 650 Watts
I have been using G.Skilll products for many years now, especially the DDR3 memory. This will be the first time using a G.SKILL power supply. I am hoping for good results.
Reviewed in the United States on April 30, 2024 by Chuck Brady

  • For my rebuilt rig
Size: 850 Watts
I bought this power supply hoping that my rebuilt rig would boot up. Lo and behold, I got my computer back. I was able to boot up with my new processor and mobo I installed. I don't expect any issues with this power supply. My mobo is the Asus ROG Strix B550-F Gaming WiFi II and processor is the AMD Ryzen 9 5900X. ... show more
Reviewed in the United States on February 19, 2024 by Juan Ramon

  • Full modular
Size: 850 Watts
Works like it should. Minimal wires. Has dual 8 pin CPU for those mobos that have 2
Reviewed in the United States on January 1, 2024 by Combo

  • Great replacement
Size: 850 Watts
The computer kept turning off. They changed the area where you get the most efficiency. Just keep that in mind.
Reviewed in the United States on January 4, 2022 by Josh kay

  • DOA
Size: 650 Watts
I replaced a power supply that was acting up. I pulled the old one out and put the new one in. I fully expected it to fir up so I hooked everything back up. It did not start. I then unhooked as much as I could to see if it would post. It did not. I then unhooked the power switch from the computer and replaced it with a test switch. Still did not post. I had an old power supply on the shelf and replaced the new one with only the bare minimum hooked up. It posted just fine. I then hooked everything back up and fired it up again. It started just fine. It was only a 600W supply and this one was a 650. I have built and trouble shot dozens of computers and have lots of spare parts to build new ones or replace defective parts. I know what I am doing. This power supply would not post ... show more
Reviewed in the United States on July 1, 2023 by William B Elliott

  • Works with 5600x and 3060ti
Size: 750 Watts
Its a power supply. Mine was new and in proper box. 89.99 at time of review. Decent price for a modular 750 watt. G.Skill memory has held up for me. Im sure their power supply will too. All cables and screws were included. Bag with Velcro to store cables. Cables are flat and rigid. All new cables. If you use the provided molex cable, just know its very tight. Needed to use a small screw driver to open the holes a little bit before it would fit. Works great. Does not get hot under load. Graphics maxed out on Dying Light 2 and Hitman 3. No issues after 12 hours of game play. UPDATE: AS of 10/6/2022 There have been no issues with this power supply. Other reviewers may have gotten bad or returned unit. ... show more
Reviewed in the United States on February 19, 2022 by Bryan S

  • Great value for a fully modular power supply
Size: 850 Watts
What I like the most, is it's quiet. Prior to purchasing this I had a semi-modular PSU in my system, but the fan was making the dreaded grinding noise and not spinning properly. It was still working, but I found that flipping my tower upside down made it work like it should...and it was quiet. Not a permanent solution though. I purchased this unit due to it being fully modular and at a great price for being a minimum gold standard. My previous PSU was also an 850 watt. The only downside, are the cables. They're stiff, flat, and a little challenging to manage in my current tower. I prefer the rounded wrapped ones, but in order to keep things running and avoid spending a few grand on a new system, this does the job it's supposed to do for the time being. I would recommend for the value and performance (for a fully modular PSU) that doesn't need to be pretty in an older case where all your components are in the open when you take the side panel off. It's probably good for newer towers as well where you can hide your cables and no one will notice. ... show more
Reviewed in the United States on August 17, 2022 by BethP

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