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header-product Power supply unit Seasonic CORE GC-850 ATX 3.1 850 W 24-pin ATX Fully-modular 80 PLUS Gold Black
82.99 €

Power supply unit Seasonic CORE GC-850 ATX 3.1 850 W 24-pin ATX Fully-modular 80 PLUS Gold Black

Fast delivery available
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Power supply Seasonic CORE GC-850 850 W Photo 1
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Power supply unit Seasonic CORE GC-850 ATX 3.1 850 W 24-pin ATX Fully-modular 80 PLUS Gold Black

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Power supply unit Seasonic CORE GC-850 ATX 3.1 850 W 24-pin ATX Fully-modular 80 PLUS Gold Black

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Short description

Seasonic CORE GC-850 is an ATX 3.1 power supply unit delivering 850 W total power with universal 100–240 V AC input (50/60 Hz). It features a 24-pin ATX motherboard connector, fully-modular cabling and 120 mm active cooling. 80 PLUS Gold efficiency ensures stable power for desktop PCs, gaming rigs and workstations; cables include AC, CPU, PCIe, SATA and Molex-to-SATA 3.3.
Available at price 82.99 €: 2 pcs.
Total available for order: 1076 pcs.
Warranty: 2 Years
SKU: 11673263
Manufacturer: SEASONIC
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
03.08.2026 {{selectedOffer.officeDeliveryString}}
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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
06.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.00 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
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From 1.79 €
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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 2.31 euros per month
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Product information

Description

The Seasonic CORE GC-850 ATX 3.1 is an 850 W fully modular power supply designed for desktop PCs and system builders. Compliant with ATX 3.1 and PCIe 5.1 standards, this 80 PLUS Gold certified unit features a 24-pin ATX motherboard connector, a 120 mm active fan, and braided black cables. The CORE GC-850 incorporates Seasonic’s OptiSink PCB layout improvements and automated surface-mount production to improve heat dissipation, reliability and long-term efficiency while supporting both next-generation and legacy GPU power connections.

Advantages

The CORE GC-850 offers efficient 80 PLUS Gold performance, fully modular cabling for simplified cable management, and a 120 mm Hydro Dynamic Bearing fan with Smart and Silent Fan Control (S2FC) for optimized cooling and reduced noise. The redesigned PCB and smaller MOSFET and heatsink components increase internal airflow and heat dissipation, improving component temperatures and overall reliability. Includes native 12V-2x6 and 2×8-pin GPU compatibility and is backed by a 7-year manufacturer’s warranty.

Suitable for

  • High-performance gaming PCs using next-gen or legacy GPUs
  • Workstations and content-creation systems requiring stable 850 W power
  • Custom builds where fully modular cabling and compact internal layout are desired
  • System builders and PC enthusiasts seeking 80 PLUS Gold efficiency

Key specifications

  • Total power: 850 W
  • AC input voltage: 100 - 240 V, 50/60 Hz
  • Motherboard connector: 24-pin ATX
  • 80 PLUS certification: 80 PLUS Gold
  • Cabling: Fully modular; braided black cables
  • Cooling: Active 120 mm Hydro Dynamic Bearing fan with S2FC
  • Compatibility: ATX 3.1 and PCIe 5.1 standards; native 12V-2x6 and 2×8-pin GPU support
  • Color: Black
  • Manufacturer warranty: 7 years

How to use

Install the CORE GC-850 into a compatible ATX case following standard PSU mounting orientation and grounding practices. Connect the 24-pin ATX motherboard cable and required CPU, PCIe, SATA and peripheral cables using the fully modular connectors included. Ensure the AC input range (100–240 V, 50/60 Hz) matches your mains supply and secure the AC cable. Monitor airflow and cable routing to maintain adequate ventilation inside the case.

Usage recommendations

For reliable operation, allow at least one case fan for intake or exhaust in addition to the PSU fan, keep cables tidy to avoid obstructing airflow, and verify GPU power connector type before installation. Use the unit within its specified input range and load capacity, and follow the 7-year warranty service procedures provided by Seasonic for support.

Specifications

Total power:
850 W
Motherboard power connector:
24-pin ATX
80 PLUS certification:
80 PLUS Gold
Fan diameter:
120 mm
Product colour:
Black
All features

Power

Total power:
850 W
Power protection features:
Over voltage, Over total voltage, Under voltage, Over power, Over current, Short circuit
Combined power (+3.3V):
100 W
Combined power (+12V):
840 W
Combined power (-12V):
3.6 W
Combined power (+5Vsb):
15 W
Max output current (+3.3V):
20 A
Max output current (+12V):
70 A
Max output current (+5V):
20 A
Max output current (-12V):
0.3 A
Max output current (+5Vsb):
3 A
Input current:
11 - 5.5
AC input frequency:
50/60
AC input voltage:
100 - 240

Ports & interfaces

Motherboard power connector:
24-pin ATX
Number of SATA power connectors:
2
Peripheral (Molex) power connectors (4-pin):
2
Cabling type:
Fully-Modular
Number of PATA power connectors:
2
Motherboard power cable length:
610 mm

Performance

Purpose:
PC
80 PLUS certification:
80 PLUS Gold
Mean time between failures (MTBF):
100000 h
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

Certification:
OCP, OPP, OTP, SCP, OVP, UVP, BSMI, C-tick, CB, CCC, CE, cTUVus, EAC, FCC, TUV, UKCA, ErP Lot 6, Energy Star, REACH, RoHS, WEEE
Compliance certificates:
REACH, cTUVus, WEEE, UKCA, RoHS, EAC, CE, CCC, CB, BSMI

Technical details

Sustainability certificates:
ENERGY STAR

Weight & dimensions

Height:
86 mm
Width:
150 mm
Depth:
140 mm

Operational conditions

Operating temperature (T-T):
0 - 50

Packaging data

Package type:
Box

Packaging content

Cables included:
SATA, PCIe, CPU, Peripheral (Molex) to SATA 3.3, AC

Description

Machine translation. Load original

Reasons to buy

Optimized for PCIe 5.1 GPUs

The CORE GX ATX 3.1 power supply features a native 12V-2x6 cable designed for the latest PCIe 5.1 graphics cards. With support for up to 600W of power delivery, this cable ensures safe and stable performance for NVIDIA RTX 40 and 50 Series and future high‑end GPUs. Enjoy a clean, efficient setup that’s fully compliant with ATX 3.1 and PCIe 5.1 standards.

- Fully compliant with PCIe 5.1 and ATX 3.1 standards
- Up to 600W of power
- Future‑ready while still supporting existing hardware

Optimized for PCIe 5.1 GPUs

Full Support for Legacy GPUs

To ensure compatibility with older GPUs, the CORE GX ATX 3.1 includes a 12V-2x6 to 2×8-pin PCIe adapter cable. It delivers reliable power and works seamlessly with graphics cards from previous generations. This cable makes it easy to upgrade your PSU without changing your GPU—ideal for users who want next‑generation power while retaining legacy support.

- Converts 12V-2x6 output to 2×8-pin PCIe inputs
- Ideal for graphics cards from previous generations
- Easy to install for users upgrading older systems

Full Support for Legacy GPUs

Fully Modular Cables

In Sea Sonic’s patented design, full modularity combines with extensive use of SMD technology to increase overall performance and reliability. The streamlined layout helps achieve high quality and performance by minimizing line resistance, reducing voltage drop and lowering impedance. Fewer components and better space utilization improve airflow inside the case, promote heat dissipation and proper cooling, and ultimately extend product life.

Fully Modular Cables

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Stock data
Warehouse Stock Delivery to the store Store Price
WH155 2 03.08.2026 82.99 € Best price
EU16 163 03.08.2026 93.49 €
WH334 5 03.08.2026 94.99 €
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WH109 217 17.08.2026 98.99 €
WH345 574 03.08.2026 121.99 €
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93.49 €
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Customer reviews

Customer questions

FAQ

How much does the Power supply Seasonic CORE GC-850 850 W cost, and is it available for purchase?

The price is 82.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1076 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 03.08.2026 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 Power supply Seasonic CORE GC-850 850 W 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 Power supply Seasonic CORE GC-850 850 W 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 SEASONIC 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 SEASONIC 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, 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 Seasonic CORE GC-850 850 W?

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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