NZXT C850 Gold Core - 850W ATX 3.1 Power Supply - 80 Plus Gold - Cybenetics Platinum - Fully Modular - PCIe 5.1 600W 12V-2x6 - Zero RPM Fan - 105°C Capacitors - Black
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Availability:
In Stock.
Arrives
Wednesday, Mar 25
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Color: Black
Size: 850W Gold Core
Style: Core ATX 3.1
Features
- ATX 3.1 CERTIFIED, PCIE 5.1 READY Supports next-gen GPUs with a dual-color 12V-2x6 connector for safe, stable, and efficient power deliveryideal for modern NVIDIA graphics cards.
- 80 PLUS GOLD & CYBENETICS PLATINUM EFFICIENCY Delivers energy-efficient, stable performance to reduce heat and power draw, even under demanding loads.
- WHISPER-QUIET OPERATION Cybenetics noise certified for near-silent performance: A++ for C750 and C850 (<15 dBA), A+ for C1000 (1520 dBA).
- READY FOR AMD & NVIDIA GPUS Compatible with most GPUs using a 12V-2x6 cable or up to three 8-pin PCIe cables.
- FDB FAN WITH ZERO RPM MODE 135 mm fluid dynamic bearing fan stays quiet and efficient, with Zero RPM mode during light workloads for silent operation.
- PREMIUM 105C-RATED CAPACITORS High-quality components ensure stable, long-lasting performance across a wide range of system loads.
- FULLY MODULAR WITH EMBOSSED CABLES Use only the cables you need with a clean, compact design and durable, flexible cables for easy routing.
- BUILT-IN PROTECTIONS & 7-YEAR WARRANTY Includes essential safety features and a dual-colored 12V-2x6 connector rated for 105C, all backed by a 7-year warranty.
Description
The NZXT C850 Gold Core is an ATX 3.1, fully modular PSU with 80 PLUS Gold and Cybenetics Platinum efficiency, A++ noise rating, and a 600W 12V-2x6 PCIe 5.1 connector. Built for modern GPUs, it delivers clean, quiet power with easy cable management for performance PCs.
Brand: NZXT
Compatible Devices: PC
Connector Type: ATX
Output Wattage: 850 Watts
Form Factor: ATX
Wattage: 850 watts
Cooling Method: Air
Item dimensions L x W x H: 5.91 x 5.91 x 3.39 inches
Power Supply Design: Full Modular
Maximum Input Voltage: 240 Volts (AC)
Brand: NZXT
Item model number: PA-8G3BB-US
Item Weight: 7 pounds
Product Dimensions: 5.91 x 5.91 x 3.39 inches
Item Dimensions LxWxH: 5.91 x 5.91 x 3.39 inches
Color: Black
Manufacturer: NZXT
Date First Available: October 1, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Mar 25
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
Color: Black
Size: 1200W Gold
Style: C Series ATX 3.1
The NZXT C1200 Gold ATX 3.1 power supply has been an absolute game-changer for my PC build. Build Quality: From the moment you take it out of the box, it feels premium. The matte black finish, clean design, and fully modular cables make it look as good as it performs. Everything about it screams durability. Performance: With 1200W of 80+ Gold-certified efficiency, it delivers stable, reliable power even under heavy loads. I’m running a high-end GPU and multiple NVMe drives, and this PSU doesn’t even flinch. Voltage stability is rock-solid, and the ATX 3.1 support means it’s ready for the latest GPUs and beyond. Noise Levels: The low-noise fan profile is fantastic. Even when gaming or rendering, the PSU stays whisper-quiet—most of the time, I forget it’s even on. Modularity & Cable Management: Being fully modular, it only uses the cables I need, which keeps my case airflow clean and organized. The included sleeved cables are high quality and easy to work with. Bottom Line: If you’re looking for a future-proof, ultra-reliable, and quiet PSU that can handle anything you throw at it, the NZXT C1200 Gold ATX 3.1 is worth every cent. Perfect for enthusiasts and high-performance builds.
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Reviewed in the United States on August 13, 2025 by Nicks Tech Corner
Color: White
Size: 850W Gold
Style: C Series ATX 3.1
I was a bit hesitant about buying a power supply unit (PSU) from NZXT; it's not the most-known brand for PSUs and some reviews on Amazon were not the best. However, after using and testing it in various scenarios with my RX 9070 XT, I can say that it's an excellent PSU. It performs well, is almost silent and the cables are long enough and tidy for my build. They also look great inside my white case. In terms of value for money, this PSU is excellent and comes with all the cables needed for a high-end build.
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Reviewed in the United States on December 4, 2025 by Darkzelda Darkzelda
Color: Black
Size: 850W Gold
Style: C Series ATX 3.1
Had this for a few months, it is a great power supply overall. It remains close to silent even at 75% load, which is the ideal situation. It is also very efficient at low loads, limiting idle/off current waste, probably due to . Build quality is great with excellent cable management and outlets.
Reviewed in the United States on January 2, 2026 by ioana
Color: Black
Size: 850W Gold
Style: C Series ATX 3.1
Amazing powerful modular psu! NZXT has really made a name for themselves with quality products that are reliable and deliver top notch performance rivaling the best in the business! This should be your next power supply!
Reviewed in the United States on January 19, 2026 by Chris Ball
Color: Black
Size: 1000W Gold Core
Style: Core ATX 3.1
Excellent PSU. Looks fantastic and cables are braided. Very easy to install and the cables are coded, so there is no way you can slot one in wrong port unless you have no idea what a PSU is. Fits well in my NZXT H6. Durable as well. Will update in the future.
Reviewed in the United States on December 6, 2025 by Dbhowmik
Color: Black
Size: 850W Gold
Style: C Series ATX 3.1
This was perfect for my new build. Shipped fast and was used immediately. 850w is perfect for a new AM5 build. Modular wires are all good to go as well. No issues.
Reviewed in the United States on January 17, 2026 by pspness
Color: Black
Size: 850W Gold
Style: C Series ATX 3.1
Needed a replacement power supply for my NAS, and this happened to be on sail at the time. I haven't had any issues with it, and the included cables / cable bag is pretty nice! I honestly had no idea NZXT was doing power supplies. I am sure its a rebrand of something else, but its really nice, and the fan is quiet. Came with more than enough cables for my needs, and I was happy with the price.
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Reviewed in the United States on September 19, 2025 by benson
Color: White
Size: 1000W Gold
Style: C Series ATX 3.1
First NZXT PSU I've ever bought is this C1000w Gold. Lets start off by saying the unboxing, look, feel, build quality, and weight of this power supply is very nice. It has a textured look and feel, the silver band with logo is pleasing not intrusive. The purple cable bag is a nice touch, and this C1000w unit should have good performance for years to come. Even with powering my high end setup: Ryzen 9 9950x, RX 9070 XT, 96GB, etc. in an NZXT H6 Flow case. The PSU is really well built with solid internals, has a 10yr warranty, and it's a nice looking unit. It should fit into most cases ATX, mid tower, etc. Coming with all white cables was a plus, so I don't have to buy cable extensions. At least that's what I first thought too but...First off it does come with all white cables, all but one...why would you put a black power cable in with an all white unit. I get it and can over look that, no biggie. Then I get to the PSU cables themselves and....They are so stiff I could barely bend them, and they weren't cold. Trying to bend them makes them feel and sound like they're cracking, not a fan. The flat cables that it comes with aren't too bad, but still stiff and plastic feeling. The 24 pin cable that's sleeved is glued, then covered with 1" heat shrink. The 3 GPU cables and others with sleeves are glued, then covered with .5" heat shrink. The worst part is the sleeves don't even come to the end of the cables, it starts about 2-3" away from the end. The part that's glued and covered will not bend no matter what you do, making it really hard to manage and ugly looking. That's even if you can get them into place without feeling like you just had to force it and you're hoping the motherboard will hold...I couldn't live with that. So I had to buy cable extensions. The PSU unit is awesome, the bag is great, the cables...not so great. Maybe just okay. The unit gets 5 stars, but the cables bring it down to this outcome. I will update this review with it's longevity. NZXT really needs to work on their cables. ~Be prepared for the extra cost of cable extensions, starting around 30 bucks...Cause I Wasn't.
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Reviewed in the United States on December 6, 2025 by Skye