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header-product Power supply COUGAR GST 850W ATX3.1 80 PLUS Gold, 850 W, 20+4 pin ATX, 120 mm fan, black
122.49 €

Power supply COUGAR GST 850W ATX3.1 80 PLUS Gold, 850 W, 20+4 pin ATX, 120 mm fan, black

COUGAR GST 850W ATX3.1 power supply Photo 1
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COUGAR GST 850W ATX3.1 power supply Photo 8
COUGAR GST 850W ATX3.1 power supply Photo 1
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COUGAR GST 850W ATX3.1 power supply Photo 8
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Power supply COUGAR GST 850W ATX3.1 80 PLUS Gold, 850 W, 20+4 pin ATX, 120 mm fan, black

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Short description

COUGAR Power Supply GST 850W ATX3.1 is an ATX-format PSU designed for desktop PCs, delivering 850 W total power with 80 PLUS Gold efficiency (approx. 91%). It supports a 20+4 pin ATX motherboard connector, active cooling via a 120 mm fan, and universal 100–240 V AC input at 50/60 Hz. Key features include SATA power cable lengths up to 450 mm, black finish, compliance with CE, EAC, FCC, RoHS, TÜV and UKCA standards, and a compact form factor for system builds and upgrades.
Available for order: 33 pcs.
Warranty: 2 Years
SKU: 12038269
Manufacturer: SilentiumPC
free shipment

Cheapest delivery:

Latvijas Pasts pakomāts

Pick-up points

Latvijas Pasts pakomāts

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
16.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
21.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 2.22 kg)
Parcel couriers
Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts nodaļa
21.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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3 mth. х 40.83 €

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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 3.40 euros per month
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Product information

Description

COUGAR GST 850W ATX3.1 80 PLUS Gold is a non-modular ATX power supply designed for desktop PCs and compact system builds. Delivering 850 W of continuous power with approximately 91% conversion efficiency, this PSU follows the ATX 3.1 and PCIe 5.1 guidelines and includes a native PCIe 12V-2X6 (12+4 pin) connector for next-generation graphics cards. The unit incorporates a 120 mm Hydro Dynamic Bearing (HDB) fan with temperature-controlled speed, 105°C Japanese capacitors for stable standby power and tightly regulated LLC + DC-DC + Tri-Sense outputs, and supports universal 100–240 V AC input at 50/60 Hz.

Advantages

The GST 850W combines high conversion efficiency with compliance to modern ATX 3.1 and PCIe 5.1 requirements to provide stable and reliable power delivery for contemporary systems. A native 12+4-pin connector and long cables reduce the need for adapters and simplify GPU installation. The 120 mm HDB fan and refined blade design focus airflow and minimize vibration, delivering quiet operation across typical workloads. Built with 105°C Japanese capacitors and designed to operate reliably at up to 40°C ambient temperature, this PSU emphasizes consistent voltage regulation and durability.

Suitable for

  • Gaming desktops with mid-to-high power GPUs that require a 12+4-pin PCIe connector
  • Workstations running multi-core CPUs and graphics-intensive applications
  • System upgrades where ATX 3.1 compatibility and high efficiency are required
  • Compact PC builds needing a non-modular, space-efficient PSU with reliable cables

Key specifications

  • Total power: 850 W
  • Efficiency: approximately 91% (80 PLUS Gold)
  • Motherboard connector: 20+4 pin ATX
  • PCIe connector: native 12V-2X6 (12+4-pin) for PCIe 5.1 GPUs
  • Cooling: 120 mm HDB fan with temperature-controlled speed
  • Input voltage: 100–240 V AC, 50/60 Hz
  • Operating ambient temperature: up to 40°C
  • Capacitors: 105°C Japanese capacitors for standby power
  • Voltage regulation: LLC + DC-DC + Tri-Sense design with tight ±3% regulation
  • Colour and form: black finish, compact ATX form factor
  • Weight: 2.22 kg
  • Fan diameter: 120 mm

How to use

Install the PSU into a compatible ATX case following the case manufacturer’s instructions and ensure the unit is securely fastened. Connect the 20+4 pin ATX cable to the motherboard and use the native 12+4-pin PCIe cable for compatible GPUs; ensure connectors are fully seated. Route SATA and peripheral cables to storage drives and peripherals, keeping cables tidy to maintain airflow. Before first power-up, verify input voltage selection if present and confirm all connections are correct. Power on the system and monitor voltages in BIOS or with system monitoring tools to confirm stable operation.

Usage recommendations

For optimal performance and longevity, use the GST 850W with systems whose peak power draw remains within the PSU’s rated capacity including expected power spikes. Maintain adequate case airflow and avoid obstructing the 120 mm fan intake. Periodically check cable connections and dust levels; clean the fan and vents as needed. When building with high-end GPUs, use the native 12+4-pin connector provided and avoid adapters that could introduce poor contacts.

Specifications

Total power:
850 W
Efficiency:
91 %
Motherboard power connector:
20+4 pin ATX
80 PLUS certification:
80 PLUS Gold
Fan diameter:
120 mm
Weight:
2.22 kg
Product colour:
Black
All features

Power

Total power:
850 W
Efficiency:
91 %
Power protection features:
Under voltage, Short circuit, Overheating, Over voltage, Over power, Over current
Combined power (+3.3V):
120 W
Combined power (+12V):
850 W
Combined power (+5V):
120 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:
12 - 6
AC input frequency:
50/60
AC input voltage:
100 - 240

Ports & interfaces

Motherboard power connector:
20+4 pin ATX
PCI Express connector:
Yes
Number of SATA power connectors:
8
Peripheral (Molex) power connectors (4-pin):
4
CPU power connector (4+4 pin):
Yes
PCI Express power connectors (6+2 pin):
4
Cabling type:
Non-Modular
Motherboard power cable length:
550 mm
SATA power cable length:
450, 150
CPU power cable length:
600 mm
Peripheral (Molex) power cable length:
450, 150
PCI Express power cable length:
550 mm
PCI Express power connectors (12+4 pin):
1

Performance

Purpose:
PC
80 PLUS certification:
80 PLUS Gold
Bearing technology:
HDB
ATX version:
3.1
Power supply unit (PSU) form factor:
ATX

Design

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

Certificates

Compliance certificates:
CE, EAC, Federal Communications Commission (FCC), RoHS, TÜV mark, UKCA

Weight & dimensions

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

Operational conditions

Operating relative humidity (H-H):
20 - 85
Storage temperature (T-T):
-40 - 70
Operating temperature (T-T):
10 - 40
Storage relative humidity (H-H):
5 - 95

Packaging data

Package weight:
3020 g
Package depth:
290 mm
Package height:
105 mm
Package width:
215 mm

Description

Machine translation. Load original

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Customer reviews

Customer questions

FAQ

How much does the COUGAR GST 850W ATX3.1 power supply cost, and is it available for purchase?

The price is 122.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 33 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 16.07.2026 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: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can COUGAR GST 850W ATX3.1 power supply be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the COUGAR GST 850W ATX3.1 power supply online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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 SilentiumPC 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 SilentiumPC 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, efficiency, 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 COUGAR GST 850W ATX3.1 power supply?

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.
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