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header-product Power Supply Unit CORSAIR RM850x 850 W ATX 80 PLUS Gold, fully-modular, 140 mm fan, 24-pin, 12 SATA
152.49 €

Power Supply Unit CORSAIR RM850x 850 W ATX 80 PLUS Gold, fully-modular, 140 mm fan, 24-pin, 12 SATA

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CORSAIR RM850x 850 W ATX PSU Photo 1
CORSAIR RM850x 850 W ATX PSU Photo 2
CORSAIR RM850x 850 W ATX PSU Photo 1
CORSAIR RM850x 850 W ATX PSU Photo 2
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Power Supply Unit CORSAIR RM850x 850 W ATX 80 PLUS Gold, fully-modular, 140 mm fan, 24-pin, 12 SATA

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Power Supply Unit CORSAIR RM850x 850 W ATX 80 PLUS Gold, fully-modular, 140 mm fan, 24-pin, 12 SATA

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Short description

ATX power supply CORSAIR RM850x delivers 850 W total power with 80 PLUS Gold efficiency (~90%). Fully-modular cabling, 24-pin motherboard connector, EPS (4+4) and one 16-pin PCIe plus three 6+2 PCIe connectors. Includes 12 SATA and 2 Molex outputs, 140 mm active cooling fan, ATX 3.1/EPS 2.92 support. Suitable for high-performance PCs and small servers; compact 160 mm depth and 3.28 kg weight.
Available at price 152.49 €: 50 pcs.
Total available for order: 600 pcs.
Warranty: 2 Years
SKU: 11082561
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
Wednesday {{selectedOffer.officeDeliveryString}}
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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
03.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 2.75 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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36 months installment: from 4.24 euros per month
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Product information

Description

The Corsair RM850x 850 W is a fully modular ATX 3.1-compliant power supply designed to deliver stable power to high-performance PCs. It features 80 PLUS Gold efficiency, a native 12V-2x6 GPU cable for modern graphics cards, low-noise operation with Zero RPM mode, and 100% industrial-grade Japanese 105°C electrolytic capacitors for extended reliability. The unit supports continuous operation up to 50°C and includes a 140 mm fluid-dynamic-bearing fan with a manual fan override knob.

Advantages

The RM850x combines high efficiency (80 PLUS Gold) with low-noise characteristics thanks to a 140 mm fluid dynamic bearing fan and Zero RPM mode. Full modularity reduces cable clutter and simplifies installation, while 105°C-rated Japanese capacitors and 50°C continuous operating temperature ensure long-term stability under load. ATX 3.1 certification guarantees compatibility with current CPU/GPU power states and modern sleep/hibernate modes.

Suitable for

  • High-performance gaming PCs with NVIDIA GeForce RTX 40 Series or similar GPUs
  • Workstations requiring stable 850 W power delivery
  • PC builds where low noise and clean cable management are priorities
  • Systems operating in warm environments (up to 50°C continuous)

Key specifications

  • Total power: 850 W
  • Efficiency: 80 PLUS Gold (around 90% typical)
  • ATX compliance: ATX 3.1 certified
  • Motherboard connector: 24-pin ATX
  • Fan: 140 mm fluid dynamic bearing with Zero RPM mode
  • Capacitors: 100% Japanese electrolytic, 105°C rated
  • Included GPU cable: native 12V-2x6 pin
  • AC input: 100–240 V, 47–63 Hz
  • Colour: Black
  • Weight: 3.28 kg
  • MPN: CP-9020270-EU
  • EAN: 840006667445

How to use

Install the RM850x into a compatible ATX case and connect the 24-pin ATX motherboard cable, CPU and PCIe power connectors, and storage/peripheral power cables as required. Use only the modular cables provided or specified by the manufacturer. If your GPU requires a native 12V-2x6 connector, use the included cable. Ensure AC input matches the local mains (100–240 V). For quieter operation, leave the power supply to manage fan speed automatically; use the manual fan override knob only when additional airflow is needed.

Usage recommendations

Place the PSU so its fan intake and exhaust are unobstructed, maintain good case airflow, and avoid exposing the unit to temperatures above 50°C for prolonged periods. Use the modular cables to route power cleanly and check compatibility with your motherboard and GPU before installation.

Specifications

80 PLUS certification:
80 PLUS Gold
Power supply unit (PSU) form factor:
ATX
Purpose: What the product is used for.
PC/Server
Peripheral (Molex) power connectors (4-pin): White 4-pinned connector used to connect a peripheral to the power supply.
2
Motherboard power connector: The way in which the motherboard is connected to the power supply.
24-pin ATX
AC input voltage: The voltage of the AC electricity that is inputted into the product.
100 - 240
Total power: The total power that is needed by the device, or the total power produced by the device.
850 W
All features

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
3.28 kg
Height: The measurement of the product from head to foot or from base to top.
86 mm
Depth: The distance from the front to the back of something.
160 mm
Width: The measurement or extent of something from side to side.
150 mm

Packaging content

Cable tie(s) included:
Yes
Cables included:
DC, AC

Certificates

Compliance certificates: Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.
UKCA, RoHS, Low Voltage Directive (LVD)

Design

Number of fans: The quantity of fans (apparatus with rotating blades that creates a current of air for cooling or ventilation).
1 fan(s)
Fan diameter: The size of the fan, measured by the distance from one side of the fan to the other, via a straight line going through the middle of the fan.
140 mm
Cooling type: The method used to cool the device or to cool the air around the device.
Active
Product colour: The colour e.g. red, blue, green, black, white.
Black

Performance

EPS version:
2.92
ATX version: ATX (Advanced Technology eXtended) is a motherboard form factor specification developed by Intel in 1995. The specification defines the key mechanical dimensions, mounting point, I/O panel, power and connector interfaces between a computer case, a motherboard and a power supply. There are many versions of ATX including ATX12V 1.x and ATX12V v2.3.
3.0
80 PLUS certification:
80 PLUS Gold
Power supply unit (PSU) form factor:
ATX
Purpose: What the product is used for.
PC/Server

Ports & interfaces

Cabling type:
Fully-Modular
PCI Express power cable length:
750 mm
PCI Express power connectors (16-pin):
1
PCI Express power connectors (6+2 pin):
3
EPS power connector (4+4 pin):
Yes
Peripheral (Molex) power cable length:
650, 550, 450, 750
Peripheral (Molex) power connectors (4-pin): White 4-pinned connector used to connect a peripheral to the power supply.
2
SATA power cable length:
455, 570, 685, 800
Number of SATA power connectors:
12
Motherboard power cable length:
610 mm
Motherboard power connector: The way in which the motherboard is connected to the power supply.
24-pin ATX

Power

Power protection features: Features that protect the device against power problems e.g. overload.
Overheating, Short circuit, Over voltage, Over power, Over current
Efficiency:
90 %
Max output current (+5Vsb):
3 A
Max output current (+5V):
20 A
Max output current (+12V):
70.8 A
Max output current (+3.3V):
20 A
Combined power (+5Vsb):
15 W
Combined power (+5V):
150 W
Combined power (+12V):
849.6 W
Combined power (+3.3V):
150 W
Input current:
10 - 5
AC input frequency:
47 - 63
AC input voltage: The voltage of the AC electricity that is inputted into the product.
100 - 240
Total power: The total power that is needed by the device, or the total power produced by the device.
850 W

Description

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Stock data
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BT5 50 Wednesday Best delivery
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152.49 €
WH113 2 10.08.2026
159.49 €
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161.99 €
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BT11 140 14.08.2026
174.49 €
WH345 92 10.08.2026
175.49 €
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Customer reviews

Customer questions

FAQ

How much does the CORSAIR RM850x 850 W ATX PSU cost, and is it available for purchase?

The price is 152.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 600 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 Wednesday 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, Installment. All transactions are 100% secure and encrypted.

Can CORSAIR RM850x 850 W ATX PSU 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 CORSAIR RM850x 850 W ATX PSU 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 CORSAIR 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 CORSAIR 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: 80 plus certification, power supply unit (psu) form factor, purpose, peripheral (molex) power connectors (4-pin), motherboard power connector, ac input voltage, total power, 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.
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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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