Customer Ratings & Reviews

Bought this because I upgraded to a 5070ti and my factory 650w psu was not gonna cut it. Came with every cable i needed (in cool case too)and the install was extremely simple even if you're not a pc builder. Took maybe 15 minutes to swap it out and since its fully modular, you only hook up the cables you need. Its so convenient. Came with a 12vhpwr cable too so you don't need an adapter for newer gpus. Makes no noise from my experience and had a zero fan button to keep noise down even more. Love it and will highly recommend it for someone whos upgrading to a current gen gpu and needs the power.

High quality PSU, stays quiet, cool and delivers steady voltage. Fully modular cables were easy to work with!

After over five years, my EVGA SuperNOVA 850 G3 850 Watt Gold Power Supply was showing the early signs of failure, so I opted to replace it with the NZXT C850 Gold 850 Watt 80 Plus Gold Fully Modular Low-Noise ATX 3.1 Power Supply. It had all of the power connections that I needed for my computer, and it even included a power connection that I could utilize with my ASUS TUF Gaming GeForce RTX™ 4080 SUPER 16GB GDDR6X OC Edition without needing any adapters. So far, things have been going very well, and overall, I'm very pleased with the purchase.

I've never used NZXT but I love how they are set up and how they are 3.1 ATX with three separate graphics card cables.. I just don't understand why there's a button in the back to turn the fan on and off.. shuldnt the fan always be on, idk nzxt isn't the only one that has on and off button for the fan though.. I just don't get it but other than that I would suggest in NZXT power supply units to anybody..

Pick was quick and easy. The entire process from order to pick up was a breeze. This power supply also works perfect, great fit for my set up.

Súper beautiful excellent choice for the price great pick

As another reviewer mentioned it was dead on arrival for me as well. I took the chance after seeing the other review, because the reviews on Amazon for it were very good. It didn’t boot whatsoever for me had absolutely no signs power. Its an actual brick. I’m not sure if Best Buy got a bad batch or what, nzxt is usually a trustworthy company.

The nearby Best Buy had it in stock, so I decided to purchase it despite its very bad reviews. Unsurprisingly, most of those bad reviews turned out to be accurate, as the unit I received was DOA.

For years, I've been a loyal Cooler Master fan and have used their cases for several PC builds. The NZXT H7 Flow RGB is my first venture into NZXT, and I have to say, I'm completely blown away by how thoughtfully designed a modern case can be. It has absolutely made me a convert. Pros: Brilliant Interior Layout: The design is just brilliant. The vertical placement of the power supply, completely hidden from view, is an amazing touch that dramatically cleans up the build's appearance. The overall spacing inside is generous and a huge upgrade from my previous cramped case. Exceptional Airflow & Cooling: The "Flow" in the name is no joke. The case has fantastic airflow options that are genuinely effective. It's keeping my notoriously hot Intel i9-14900K a few degrees cooler than my last case. There was also plenty of room to mount my Kraken 360 AIO radiator at the top, which is the ideal placement for optimal cooling. Effortless Cable Management: My previous case was a nightmare for cable management, and this NZXT case solved that completely. There's plenty of space and well-placed routing options that make getting a clean-looking build incredibly easy. Overall: I honestly can't say enough nice things about the NZXT H7 Flow RGB. It solved all the spacing, cooling, and cable management issues I was struggling with and looks fantastic doing it. As of September 2025, I believe I'll be sticking with NZXT for my future builds. Highly recommended!

Super smooth and easy to use! The modularity and number of cables included made this a great and easy addition to my PC build. Enough power so I have no worries about a constant source.

Using this in a 7600X3D build with modest power requirements. I picked this power supply for a few reasons: 10 year warranty Manufactured by Seasonic Matches NZXT case aesthetic Sale Price I was a little concerned because the only 2 other reviews on Best Buy reported DOA power supply. Fortunately, the one I received worked perfectly right away. There is a fanless mode with a physical switch that keeps the fan from running when the power supply is below 50% load. My only complaint is minor. The included cables are sleeved but stiff and difficult to bend with capacitors included in the cable. Overall, very happy with this power supply.

Works great and quiet. Easy to install and it has good quality modern updated cables for new graphics cards.

Works great with my setup. Is able to produce enough power to my custom machine

Fit in case well. Installed in Old Antex 900 v2 case. Had a big problem though. The fan rubbed on top of power supply case. Didn`t have time to return so I went ahead and violated the warranty and fixed fan. The fan switch on back by power switch is a very confusing addition. You will see when you download manual and read how it is supposed to work. If you press it in, fan runs and when you leave it out, it`s automatic based on load. Why not just get rid of switch. Way too confusing. Even when running at 50% load, it's still very quiet. As for operation, works well and problem with old supply, high noise levels caused by failing high voltage capacitors, is now gone. Would buy again. Maybe next time, if fan rubbing case is a problem will return for a replacement.

I purchased an open box to save a few dollars and it was perfect. This is the best value 850w on the market. Very high quality, you can check the review on Cybenetics Labs website. It's actually made by Channel Well Tech, the same manufacturer as Corsair's 850w unit. It is not a Seasonic like the other review mentions. NZXT got a big infusion of cash from venture capital so they will be around to honor the 10 yr warranty.

Power supply works amazing. I found that there are no throttle issues to any parts. Got it on sale and glad I made the purhcase

Very quiet psu and was easy to install. Another great product from NZXT

It's a quiet PSU, and you can tell the components are good. Beyond the quality, what stands out most is the 10-year factory warranty.

Purchased this product for my computer. I play video games, and this product supports all my needs.

Upgrading from a prebuilt psu to this bad boy looked daunting. But the install was straight forward and easily done with no experience in this field. Love this psu so much for my build