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header-product Power Supply Unit Antec GSK ATX3.1 850W
138.99 €

Power Supply Unit Antec GSK ATX3.1 850W

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Power Supply Unit Antec GSK ATX3.1 Photo 1
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Short description

The Antec GSK ATX3.1 850W power supply unit offers a total power of 850W with 80 PLUS Gold certification for high efficiency. It features a 20+4 pin ATX motherboard connector and comes with various SATA power cable lengths (500, 650, 800, 950 mm). The unit operates on an AC input voltage of 100-240V and frequency of 50/60Hz. With an active cooling system and a 12 cm fan, it ensures optimal performance and reliability for your PC.
Available at price 138.99 €: 2 pcs.
Total available for order: 7 pcs.
Warranty: 2 Years
SKU: 11242751
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
23.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
28.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 2.33 kg)
Parcel couriers
Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Latvijas Pasts nodaļa
28.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
payment
Payment Methods:
Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay
Available for private customers at price 142.99 €: 5 pcs.
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Product information

Description

The Antec GSK ATX3.1 850W is a fully modular power supply unit designed for gaming and enthusiast PC builds. It delivers up to 850 W of continuous power with 80 PLUS Gold efficiency and supports ATX 3.1 and PCIe 5.1 standards. The unit includes a 120 mm fluid-dynamic bearing fan, high-quality JP capacitors, PhaseWave™ DC-DC topology with synchronous rectification, and a range of industrial-grade protections for stable and reliable operation.

Advantages

The PSU combines ATX 3.1 and PCIe 5.1 compatibility with tight voltage regulation from JP capacitors and a PhaseWave™ design to provide consistent, low-noise power delivery. Its 80 PLUS Gold certification ensures high efficiency, while the Zero RPM Manager and 120 mm FDB fan offer quiet, temperature-driven cooling. The fully modular cable design simplifies cable management and improves airflow within the case.

Suitable for

  • High-performance gaming PCs using modern GPUs (PCIe 5.1 compatible)
  • Content creation and workstation builds requiring stable 850 W power
  • Enthusiast systems where cable management and quiet operation matter

Key specifications

  • Total power: 850 W
  • 80 PLUS certification: 80 PLUS Gold
  • Form factor / standard: ATX 3.1
  • GPU connector: PCIe 5.1 (12V-2x6) compatibility
  • Motherboard connector: 20+4 pin ATX
  • Fan diameter: 120 mm (FDB)
  • Input voltage/frequency: 100–240 V AC, 50/60 Hz
  • Modularity: 100% modular cables
  • Weight: 2.62 kg
  • Color: Black

How to use

Install the power supply into a compatible ATX case following the case manufacturer’s instructions and connect the 20+4 pin ATX cable to the motherboard. Use the provided modular cables for GPU, SATA, and peripheral connections, routing only the cables required to minimize clutter. Ensure the AC input matches the local mains specification (100–240 V, 50/60 Hz) and secure the PSU with the mounting screws supplied with your case. After initial power-on, verify system stability and monitor fan behavior; the Zero RPM Manager will keep the fan idle until thermal thresholds require activation.

Usage recommendations

For optimal performance and longevity, keep internal case airflow unobstructed, use only the necessary modular cables, and place the PSU in a well-ventilated environment. When installing high-end GPUs from recent generations (for example NVIDIA GeForce RTX 40 series), use the supplied PCIe 5.1-compatible cable. Regularly check connections and clean dust from the fan and vents to maintain cooling efficiency.

Specifications

Total power:
850 W
Motherboard power connector:
20+4 pin ATX
80 PLUS certification:
80 PLUS Gold
Fan diameter:
120 mm
Weight:
2.62 kg
Product colour:
Black
All features

Power

Total power:
850 W
Power Factor Correction (PFC) type:
Active
Power protection features:
Under voltage, Surge & inrush protection (SIP), Short circuit, Over voltage, Over power, Over current, No load operation
Combined power (+3.3V):
100 W
Combined power (+12V):
849.6 W
Combined power (+5V):
100 W
Combined power (-12V):
3.6 W
Combined power (+5Vsb):
15 W
Max output current (+3.3V):
20 A
Max output current (+12V):
70.8 A
Max output current (+5V):
20 A
Max output current (-12V):
0.3 A
Max output current (+5Vsb):
3 A
Input current:
10
AC input frequency:
50/60
AC input voltage:
100 - 240

Ports & interfaces

Motherboard power connector:
20+4 pin ATX
Number of SATA power connectors:
8
Peripheral (Molex) power connectors (4-pin):
4
ATX power connector (20+4 pin):
Yes
CPU power connector (4+4 pin):
Yes
PCI Express power connectors (6+2 pin):
4
Cabling type:
Fully-Modular
Motherboard power cable length:
600 mm
SATA power cable length:
950, 800, 650, 500
Peripheral (Molex) power cable length:
500, 950, 800, 650
PCI Express power connectors (12+4 pin):
1

Performance

Purpose:
PC
80 PLUS certification:
80 PLUS Gold
ATX version:
3.1
Silent mode:
Yes
Power supply unit (PSU) form factor:
ATX

Design

Fan diameter:
120 mm
Number of fans:
1 fan(s)
Cooling type:
Active
Fan location:
Top
On/off switch:
Yes
Product colour:
Black

Certificates

Certification:
cTUVus / TUV / CB / RCM / CE / FCC / BSMI / KC / UKCA / ICES

Weight & dimensions

Weight:
2.62 kg
Height:
86 mm
Width:
150 mm
Depth:
140 mm

Operational conditions

Operating temperature (T-T):
0 - 40

Packaging data

Package weight:
2840 g
Package depth:
296 mm
Package height:
130 mm
Package width:
203 mm
Package type:
Box

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Stock data
Warehouse Stock Delivery to the store Store Price
WH356 5 10.07.2026 Best delivery 142.99 €
Available only for legal entities
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Customer reviews

Customer questions

FAQ

How much does the Power Supply Unit Antec GSK ATX3.1 cost, and is it available for purchase?

The price is 138.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All ANTEC products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized ANTEC service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: total power, motherboard power connector, 80 plus certification, fan diameter, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for Power Supply Unit Antec GSK ATX3.1?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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