# Power supply unit CORSAIR RMx Shift Series RM850x 850 W, 24‑pin ATX, 80 PLUS Gold, Black

**URL:** https://aio.lv/en/product--corsair-572384--12373057
**Data updated:** 2026-04-23 13:20 (EEST)
**Category:** Power Supplies (PSU)
**Manufacturer:** CORSAIR
**Manufacturer code:** 572384
**EAN:** 0840440484974
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 252.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 208.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--corsair-572384--12373057

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

Corsair RMx Shift Series RM850x is an ATX power supply unit delivering 850 W total power with 24‑pin ATX motherboard connector and 80 PLUS Gold efficiency. It supports 100–240 V AC input (47–63 Hz), features an active 140 mm fan for cooling and black finish. Suitable for desktop PC builds requiring reliable, efficient power delivery.

## Long description

The CORSAIR RMx Shift Series RM850x is an 850 W ATX power supply designed for desktop PC builds that need reliable and efficient power delivery. It supports 100–240 V AC input at 47–63 Hz and uses a 24‑pin ATX motherboard connector. The unit is finished in black and includes an active 140 mm cooling fan for thermal management.
Advantages
This PSU uses fully modular Type-5 connectors with side-mounted, compact connections to simplify cable routing and reduce clutter inside the case. It includes a native 12V‑2x6 GPU power cable with a dual-color connector for a clear visual confirmation of a secure GPU-side connection. The design meets ATX 3.1 and PCIe 5.1 requirements, employs a resonant LLC topology with DC-DC conversion, and uses 105°C-rated Japanese electrolytic capacitors for stable output. Cybenetics Gold certification indicates up to 89% overall efficiency, lower noise and cooler operating temperatures. The unit also offers a manual fan speed control knob and Zero RPM Mode for near-silent operation at low to medium loads.
Suitable for
Mainstream and high-performance desktop PC builds requiring up to 850 W continuous power
Systems using modern GPUs that require 12V‑2x6 (dual 6-pin) connections or PCIe 5.1 power standards
Builders who prefer tidy cable management via fully modular Type-5 connectors and flexible, low-profile cables
When it may not be suitable
This power supply provides up to 850 W and is not suitable for systems that require higher continuous power budgets—such as multi-GPU servers or extreme workstation configurations that exceed 850 W. Also, while the included native 12V‑2x6 GPU cable supports many modern graphics cards, some GPUs or adapter setups may require different connector types or additional power delivery solutions.
Key specifications
Total power: 850 W
Input voltage: 100–240 V AC, 47–63 Hz
Efficiency: Cybenetics Gold (up to ~89% overall efficiency)
Form factor / connector: 24‑pin ATX motherboard connector
Modularity: Fully modular with Type-5 side-mounted connectors
GPU cable: Native 12V‑2x6 dual-color connector cable
Cooling: 140 mm Fluid Dynamic Bearing fan with Zero RPM Mode and manual fan speed control knob
Capacitors: 105°C-rated Japanese electrolytic capacitors
Topology: Resonant LLC with DC-DC conversion
Colour: Black
How to use
Install the RM850x into a standard ATX-compatible case and connect the 24‑pin ATX motherboard cable to the motherboard. Attach only the modular cables you need using the Type-5 side-mounted connectors to reduce cable clutter. Use the included native 12V‑2x6 GPU cable to power compatible graphics cards, ensuring the dual-color connector seats fully for visual confirmation. Adjust the fan behaviour with the manual fan speed knob if you need extra airflow, or leave the unit in Zero RPM Mode for quieter operation at lower loads.
What to consider before purchase
Ensure your system’s total power draw does not exceed 850 W under typical or peak load
Confirm your GPU and other components are compatible with the native 12V‑2x6 GPU cable or that you have any required adapters
Verify your PC case has space and mounting support for a standard ATX PSU and a 140 mm fan exhaust path
Check that Cybenetics Gold efficiency and the specified capacitor ratings meet your expectations for noise and longevity
Usage recommendations
For optimal performance and cable management, install only the modular cables required for your build, route Type-5 cables along the case edges, and confirm the dual-color GPU connector is fully seated. Use the manual fan knob to increase airflow during heavy loads and return to Zero RPM Mode for quieter idle operation.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 850 W |
| Combined power (+3.3V) | 120 W |
| Combined power (+12V) | 850 W |
| Combined power (+5V) | 120 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 (+5Vsb) | 3 A |
| Input current | 10 - 5 |
| AC input frequency | 47 - 63 |
| AC input voltage | 100 - 240 |

### Ports & interfaces

| Feature | Value |
|---|---|
| Motherboard power connector | 24-pin ATX |
| PCI Express connector | Yes |
| Number of SATA power connectors | 9 |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Fully-Modular |
| Number of PATA power connectors | 4 |
| Motherboard power cable length | 610 mm |
| SATA power cable length | 500, 700, 100 |
| EPS power connector (4+4 pin) | Yes |
| PCI Express power connectors (12+4 pin) | 1 |
| PCI Express power connectors (12+4 pin) cable length | 650 |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC |
| 80 PLUS certification | 80 PLUS Gold |
| Mean time between failures (MTBF) | 100000 h |
| Bearing technology | FDB |
| ATX version | 3.1 |
| Power supply unit (PSU) form factor | ATX |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 140 mm |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| On/off switch | Yes |
| Product colour | Black |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 2.89 kg |
| Height | 86 mm |
| Width | 160 mm |
| Depth | 150 mm |

## FAQ

### How much does the CORSAIR RMx Shift RM850x 850 W power supply cost, and is it available for purchase?

The price is 252.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 17.07.2026 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 CORSAIR RMx Shift RM850x 850 W power supply be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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. More information about warranty service: https://aio.lv/en/warranty

### 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.

## Image

https://aio.lv/img/cache/product/12373057/68498368_large.webp