SKU: 53997793507

Antec ATOM G850 850W 80 PLUS Gold Semi-Modular ATX Power Supply

$622.93 $692.15
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

Antec ATOM G850 850W 80 PLUS Gold Semi-Modular ATX Power SupplyQuick Specs Delivers 850W of stable power for demanding components. Features 80 PLUS Gold certification for up to 92% energy efficiency. Employs a semi modular design for improved cable management and airflow. Includes CircuitShield protection to safeguard components from damage. Equipped with a quiet 120mm fan for optimal cooling performance. Power Your Gaming Rig with Confidence The Antec ATOM G850 is a reliable and efficient 850W power supply,

Quick Specs

Delivers 850W of stable power for demanding components.
Features 80 PLUS Gold certification for up to 92% energy efficiency.
Employs a semi-modular design for improved cable management and airflow.
Includes CircuitShield™ protection to safeguard components from damage.
Equipped with a quiet 120mm fan for optimal cooling performance.

Power Your Gaming Rig with Confidence

The Antec ATOM G850 is a reliable and efficient 850W power supply, perfect for powering your high-performance gaming PC. Built with quality components and advanced features, this PC power supply ensures stability and protects your valuable hardware.

80 PLUS Gold Certified Efficiency

The 80 PLUS Gold certification guarantees up to 92% efficiency, reducing heat generation and lowering your electricity bill. This means more power goes directly to your components, optimising performance and minimising waste with this 850W power supply.

Semi-Modular Design for Easy Installation

The semi-modular design allows you to connect only the cables you need, reducing clutter and improving airflow inside your case. This makes building and maintaining your system easier and keeps everything running cool. The Antec ATOM G850 850W power supply makes cable management a breeze.

Comprehensive Protection with CircuitShield™

Antec’s CircuitShield™ provides industrial-grade protection against overcurrent, overvoltage, over power, short circuit, and over temperature. These protections ensure your components are safe from potential damage, increasing the lifespan of your system when using this PC power supply.

Whisper-Quiet Cooling

The 120mm silent fan delivers efficient cooling with minimal noise. This ensures your PSU stays cool even under heavy loads, without disrupting your gaming experience. The ATOM G850 850W power supply keeps your system cool and quiet.

FEATURES:

80 PLUS Gold Certified - To reduce your electricity bill
CircuitShield™ - Industrial grade protections OCP/UVP/OVP/OPP/SCP/OTP/NLO
120mm silent fan to keep your system cool
Flat cable design for better cable management
Thermal Manager - An advanced fan control for optimal heat and noise
Active Power Factor Correction (APFC)
Designs for DC to DC module
60 months warranty

SPECIFICATIONS:

Type ATX 12V 2.53
Modular Semi-modular design
Input Voltage 200-230 VAC
Input Current 5A
Input Frequency Range 50Hz
PFC Active PFC
Power Good Signal 100-500ms
Protection OCP/UVP/OVP/OPP/SCP/OTP/NLO
Max. Power 850W
Regulatory CB/CE/BIS
Fan 120mm silent fan
Certifications 80 PLUS Gold
Connectors 1 x MB 24(20+4) Pin2 x 8(4+4) Pin EPS 12V4 x 8(6+2) Pin PCI-E6 x SATA3 x Molex
1 x MB 24(20+4) Pin
2 x 8(4+4) Pin EPS 12V
4 x 8(6+2) Pin PCI-E
6 x SATA
3 x Molex
Product Dimensions 14 x 15 x 8.6 cm

WHAT'S IN THE BOX:

  • Antec ATOM G850 850W 80 PLUS Gold Semi-Modular Power Supply x1
  • Semi-modular Cable Set x1

Why Antec?

Antec power supplies are known for their reliability and performance, delivering stable and efficient power for your PC. With a focus on quality components and advanced features, Antec PSUs are a trusted choice for gamers and PC enthusiasts in South Africa looking for a reliable 850W power supply.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 53997793507

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4.2 ★★★★★
Based on 10 reviews
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Product Reviews
C
Verified Purchase
Christine Franzone
Lake Worth, US
★★★★★ 5
Exteremly comfortable
Color: Dark Black
Reasonably priced, very comfortable l, easy assembly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
J
Verified Purchase
James F Evans
Battle Creek, US
★★★★★ 5
Surprisingly amazing chair!
Color: Pink, Color: Pink
tl;dr: If you need a chair that has the features of this one, then this one is a winner! Hits above its weight class for sure. My wife is 5’. She’s small. For whatever reason she ended up with a chair made for big people, like 6+ feet and up to 500lbs type of a chair. She’d often even sleep on it and chill on it. The chair was big enough to fit 2 of her to be honest. It was an expensive chair that I won at some raffle and didn’t like myself. Over the years it ripped (got a cover for it) and even started to get lopsided (from the sleeping) and finally a spring broke (hence the pillow on it in the pictures) She obviously lives pink. I also wanted to get a chair where she could work and not end ip asleep on. Not like we have a couch or a bed for that 😂. This chair is very obviously smaller than her previous chair, it’s also significantly cheaper in price and build, it’s also not as durable feeling or stable, and it’s just not as padded. Yet somehow it’s an amazing chair that we both like better than her previous chair??? Like it’s crazy that this chair somehow works better in so many ways. Her desk is modified to be shorter than normal desks (again, she small lol) and her previous chair was just too big. The wheels are also like SUPER smooth, like you can run a chair race easily with it. It rolls over her rug and tucks into her desk (which is in our bedroom) easily. The amount of space this has save us when the chair isn’t being used is a lot. Previous chair was much bigger and didn’t tuck in at all. The color is nice and the padding is plenty for a small and much lighter than 500lbs woman. I’m 6 feet and 200 lbs and the chair is nice for me as well. My chair is bigger and more secure in the backing, which is similar to this one. The lowest tension setting on my chair is still too high for her to lean back on my chair. This chair has a lower tension minimum and she can easily lean back freely, as well as keep enough tension to work without sagging. This chair is surprisingly outstanding! I’m sure my wife will destroy it quicker than the last one, but it’s so cheap that even if it only lasts 1-3 years, I’ll happily buy it ones or twice more 🤷🏽‍♀️. Maybe by then they’ll invent a comfortable titanium chair that’s affordable that she won’t destroy 😂.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2024
R
Verified Purchase
Rebecca Olmos
Bozeman, US
★★★★★ 3
Mid.
Color: Light Purple
The chair is fine, and reasonably easy to put together. However, I've been using it for a little over a year and a half, and it's already falling apart. Random parts of it have fallen off, which is fine because it was still functional. But now the most frustrating part is that the wheels continue to pop off, and while the first attempts to pop them back on worked, they will not stay on now. This is obviously greatly impacting the stability, and I will need to purchase a replacement soon. For this price and lack of long-term durability, I would not buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
B
Verified Purchase
Bridgett Kelly Rode
Massapequa, US
★★★★★ 5
Alexa messed me up, but the company of the chair made it right!
Color: Light Purple, Color: Light Purple
I wanted something small with arms that moved out of the way when I wanted to slide my chair all the way into my desk for more space. This fit the bill. I loved the color blue and I had that in my cart for a bit. One day Alexa mentioned that an item that was in my cart was on sale. It was the chair. I let it be ordered. When it came it didn't exactly look blue to me. But I kept putting it together thinking maybe it was the lighting in the room I was assembling it in. I brought it to my craft room and lo and behold it is light purple. I looked at my order and sure enough it said light purple. Boo! I looked in my saved cart and the chair was gone. So I accepted it for an error. The next day I checked to see if I could return it. Thought I could, till I read that I would have to pay to return it. So I wrote the seller to tell them to ignore the return. And that was that. Till a couple days later I get an email from the seller asking if I would like a full refund or a replacement at no cost. I was like heck yeah send me the blue one. I was thrilled and I wanted to thank the seller for doing this without the return of the other chair. But I could not find a place to do that now. So here is where I will thank you. Thank you so much for doing this for me. You guys are AWESOME!. I love the chair and I love the blue color. I find it very comfortable, lite, easy to adjust, the size works great for me, and for the price the quality fits my needs. I do hope it lasts me for quite some time. Thanks again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
S
Verified Purchase
Steve in Florida
Omaha, US
★★★★★ 5
Awesome chair definitely recommend
Color: Blue, Color: Blue
It was amazing the color was spot on and it was very very easy to put together and the size is amazing for my 11 year old daughter maybe not for an older person it doesn’t recline as much as it says so if you want a reclining chair maybe I don’t recommend this chair but the quality is amazing and the adjustment capability is incredible the noise level is at 0 it is an amazing chair we just got it so I don’t know so much about the dupability so if you want this chair for a child or a tween maybe even a teen easy to put together beautiful blue color this is the chair for you.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026

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