850W Fully Modular Power Supply, 80+ Gold PSU, ATX 3.1 & PCIe 5.1 Ready, Native Dual-Color 12V-2x6 Cable, RGB Low-Noise Smart Fan, 105°C-Rated Capacitors, White
Condition: New
$89.99
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 3 left in stock, order soon!
Arrives
Monday, Nov 2
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At a glance
- Condition
- New
- Size
- 850W
- Color
- White
- Model
- S-850MZ
- Dimensions
- 6 x 6 x 3.7 in
- Weight
- 3.2 lb
- Connector Type
- ATX
- Warranty
- 10-Year Manufacturer
- Works with
- Personal Computer
Features 8
- 80 PLUS GOLD CERTIFIED: Delivering gold-level performance with 92% efficiency, ensuring effective power transmission to your components.
- Fully Modular Design: Unique dragon-pattern fully modular cables cut redundant wiring to tidy your chassis, improve airflow and optimize system heat dissipation. With dimensions of 15015086mm (5.915.913.39in), the PSU fits most mainstream ATX cases.
- Support ATX 3.1 & PCIe 5.1: Compliant with the ATX 3.1 standard to fuel high-performance PC components with stability, efficiency, and power spike resistance. Meanwhile, supporting PCIe 5.1 platform withstands 2x transient power excursions from the GPU.
- Dual-Colour 16-Pin Cable: The Dual-color dragon-pattern 12V-2x6 PCI-E 5.1 cable for modern high-end graphics cards. With yellow connector can easily show you whether the cable has been plugged in properly.
- RGB Silent Fan & RGB Lighting Model: This 140mm low-noise fan comes with a silent mode, it outperforms standard 120mm fans in terms of quietness, heat dissipation capability and durability. What's more, the psu features ARGB lighting model, allowing you to adjust the lights style according to your needs.
- 105C-Rated Capacitors: Pc power supply adopts 100% Japanese-made 105C electrolytic capacitors, which feature extremely high reliability and durability, enabling maximum power supply stability and unwavering performance at the esports level.
- Included Tool Kit: Comes with a PSU tester, cable management comb, and cable ties. Test your power supply without connecting to the motherboard using the 24-pin starter; beginners can easily manage cables and verify performance.
- 10-Year Limited Warranty Guaranteeing long-term reliable operation.
Description
Auotac mainly sales of computer DIY products, such as pc power supplies, fan hub, rgb extension cable cover,... Our mission: to create a brand-new world for DIY users, enabling you to direct an unique masterpiece. Computer DIY is not just "assembling a computer"; it is a process that integrates learning, creation, and personalized expression. It not only meets practical needs but also brings spiritual pleasure. Therefore, we offer users brand-new products， such as full-module power supplies, fan hubs, rgb cable covers, etc..
Specs 21
| Model Name | S-850MZ |
|---|---|
| Brand | Auotac |
| Connector Type | ATX |
| Output Wattage | 850 watts |
| Form Factor | ATX |
| Wattage | 850 watts |
| Cooling Method | Air |
| Item dimensions L x W x H | 6 x 6 x 3.7 inches |
| Item Weight | 3.2 pounds |
| Connector Type Used on Cable | ATX |
| Power Supply Design | Full Modular |
| Number of Fans | 1 |
| Fan Size | 14 centimeters |
| Maximum Input Voltage | 240 V AC |
| Minimum Input Voltage | 100 V AC |
| System Bus Connector Type | 20+4 Pin |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Manufacturer | Auotac |
| UPC | 746205393034 |
| Item Dimensions | 6 x 6 x 3.7 inches |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Nov 2
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.
- Klarna Financing
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Learn more about financing & leasing here.
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Top Amazon Reviews
Good pruchase at a decent price.
Size: 850W
Color: Black
Installed with no issues and it works and looks great with the RGB lighting! Have not had any issues with it at all.
Reviewed in the United States on June 5, 2026 by Chris Orr
Resuelve el problema
Size: 850W
Color: Black
Muy buen producto resolvió el problema fácil de instalar todas las instrucciones fáciles y con led incluidas Si mejoran el precio sería una buena venta
Reviewed in the United States on October 16, 2026 by Jorge Chamorro
Solid PSU – Works as Described
Size: 850W
Color: Black
I’ve been very happy with this power supply so far. The Autac 850W PSU works exactly as described and was easy to install thanks to the fully modular design. Cable management was straightforward, and the included 12V-2x6 cable made it a good fit for newer GPUs. The unit runs quietly, even under load, and the RGB fan looks great without being over the top. Build quality feels solid, and the 80+ Gold efficiency gives peace of mind for power stability. No issues at all since installation. Overall, great value for the price and I’m very satisfied with this purchase. Would definitely recommend.
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Reviewed in the United States on January 20, 2026 by Mike A. Morgan
Works
Size: 850W
Color: Black
Works great
Reviewed in the United States on September 14, 2026 by rasa
Pawer supply is really good
Size: 850W
Color: Black
Is really good it help me a lot because the old one i had couldn't handle the new Motherboard tell i got this alone working Amazing
Reviewed in the United States on June 7, 2026 by Francisco Mata Jr
Seller needs better package handling.
Size: 850W
Color: White
Does what it says, only complaint I would have is protect your manufacturer box! I sent 1 back due to condition of box and obvious handling before receiving product due to stains visible on white cabling. Replacement was clean, but manufacturer box was still worse for wear when received. Better package handling or protection is recommended to seller.
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Reviewed in the United States on June 8, 2026 by Scott boyd
Bad power supply
Size: 850W
Color: Black
My son finally finished building his pc and the power supply was bad. The PC was not working. We had it looked at by a professional and they explained this power supply was the issue. So not worth the money and unfortunately could not return since it has been over 30 days of purchase. Do not waste your money!!!
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Reviewed in the United States on December 29, 2025 by Camille Jorge
Great Buy
Size: 850W
Color: Black
This bad boy has been great! Occasionally clicks on or makes clicking noises, that is likely related to my UPS giving the pc troubles. Fit my case great, easy to install, very reliable after all this time.
Reviewed in the United States on August 1, 2026 by alexander hamilton