GAMEMAX 850W 80 Plus Gold Power Supply, ATX 3.0 & PCIE 5.0 Ready, 100% Japanese Capacitors, Fully Modular, ARGB SYNC, RGB-850 SE
Condition: New
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FREE 30-day refund/replacement
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Availability:
20 left in stock
Arrives
Nov 26 – Nov 27
Style: RGB850-PRO
Features
- ATX 3.0 & PCle 5.0 Ready: lt allows a remarkable 200% total power excurslon and 300% GPU power excurslon. ensuring full compatibility with high-performance NVlDlA 40 seres graphics cards.
- Fully Modular: 850 watt power supply features a fully modular design that optimizes airflow and minimizes clutter. Enjoy seamless orqanlzaton.
Model Name: gamemax
Brand: GAMEMAX
Compatible Devices: Personal Computer
Connector Type: ATX
Output Wattage: 850
Form Factor: ATX
Wattage: 850 watts
Cooling Method: Air
Power Supply Design: Full Modular
Current Rating: 25 Amps
Brand: GAMEMAX
Series: gamemax
Item model number: RGB850-PRO
Item Weight: 4.71 pounds
Package Dimensions: 11.1 x 8.03 x 5 inches
Color: Black
Manufacturer: GAMEMAX
Date First Available: May 14, 2022
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 26 – Nov 27
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: RGB1300
Purchased back in July of 2023 for a 13900 + 4090 build which is... thirsty for power This thing is a tank, no issues whatsoever - notably and especially nothing to report during the whole 13th gen power draw debacle. I was hesitant to grab a PSU for such a premium build from a company that doesn't rhyme with Smorsair or Smeasonic but I'm pleased that I did! The literature and online information is adequate to get set up and the modularity is decent. The cables aren't quite what I'd call "premo", however one can find a myriad of solutions here on Amazon or elsewhere for sprucing up their aesthetic. At the end of the day you need clean, consistent power provided to your components and this PSU does the job! Highly Recommend
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Reviewed in the United States on September 30, 2025 by Mitch McDanell
Just install this power supply into any computer, and boom! Anybody within a 500-foot radius will hear the loud noises from the power supply, shriek, and run far far away. My house is now free from all mosquitoes, termites, cats, annoying roommates, and more! (Detailed version) I was building an AMD RGB computer for a friend on a budget, and I was looking for a cheap PSU. This was one of the cheapest power supplies I could find on Amazon for this price point, so I went ahead and purchased it. The installation was easy; the PSU has worked flawlessly for her so far. I loved the look of the PSU in her computer, and at that time the PSU in my computer was starting to fail. I bought another GAMEMAX PSU for myself. Initially, the PSU worked great. It looked awesome in my RGB computer case, and it shot out tons of air out the back. Over time, though, the PSU started having problems. The fan would vibrate, stop, and make a high-pitch buzz, and my computer would frequently crash. As I was still in the 1-month return period, I gave GAMEMAX the benefit of the doubt and returned it, replacing it with the same PSU. My second PSU (that I am using now to type this review) hasn't had the same issues as the first. The fan still makes the vibrating noise (it must be typical for this PSU) but I don't have frequent crashes. Overall, 2/3 of these power supplies have worked for me. I would recommend this if you are on a strict budget but not if you can afford a PSU from a more reputable brand. Additional note: the PSU's eco mode is a button switch and not a flip switch. Eco mode cannot be permanently turned off; it always turns on every time you boot the computer up. [Update] I just bought another one of these PSUs for a different computer and that one works fine; now 3/4 of these have worked for me. Several of them are still emitting very annoying noises, and I believe they are coming from a faulty fan. I wouldn’t recommend these for anybody; save up and get a better PSU instead.
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Reviewed in the United States on November 29, 2019 by Random Reviewer
Style: RGB850-PRO
This PSU caught me off guard. I forgot to use the test before installing it. And this PSU has been flawless. Its modular wiring makes it great and 850 watts is premium for high end gaming. Nvidia cards work great on it.
Reviewed in the United States on September 19, 2025 by madscape
This is a pretty awesome power supply. It is perfect for any gaming rig provides that your power supply slow is not on the bottom. The reason being is the fan for the power supply is on the bottom so if you have a power supply slot on the bottom, you cannot take advantage of the RGB lights. That being said the RGB lights are absolutely beautiful. It blends very well and if you do not like the lighting you can actually turn it off which is nice. The fan is not too loud. It keeps at a pretty good noise level. It is not dead silent but it's not too heavy on noise that you will notice it. This provides 600 watt worth of power which is more than enough for more gaming rigs short of powering two graphic cards. In terms of connection, there are several connectors. Unlike many other high end power supplies you cannot remove to make cable management easier. There are several connectors. The main motherboard and cpu connector are always a must. There are five sata ports, three molex and two pci-e plugs. The pci-e ports are connected to the same wires. What is nice about this is that the PCI-e and the CPU cables are color coded so you can tell them apart easier. The CPU port is red and the PCI-E are green so you do not get them mixed up when trying to plug it in. It was able to provide my gaming rig with all the power it needed. I am running an i7, 1080 TI, 16 GB of ram and several hard drives and it runs pretty well without issue. The power supply does not get too hot or anything so you do not have to worry about it burning out. The cables are all long enough to work well in a full size tower and all the connector are secure. Overall I think this is a good power supply for any gaming rig given you are not running more than one GPU. It has an option of controlling the LED lights and is not too loud. It comes with the four mounting screws and the standard power cord which feel a little flimsy but it works. The light show is nice and not too bright. If you have an RGB gaming rig this is definitely going to fit into the theme.
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Reviewed in the United States on April 22, 2020 by RedAkuma82