Does the CORSAIR RM1000x include a native 12V-2x6 cable for RTX 40 and RTX 50 Series GPUs?

Yes. The RM1000x includes a native 12V-2x6 (12+4-pin) cable rated for 600W, designed for RTX 4090, RTX 5090, and other modern high-power GPUs. No adapters needed—just plug directly into your GPU's 12V-2x6 port.

What's the difference between Cybenetics Gold and 80 PLUS Gold efficiency ratings?

Cybenetics Gold is roughly equivalent to 80 PLUS Gold (87-90% efficiency at typical loads) but uses more rigorous testing across a wider load range. Both certifications mean the RM1000x wastes less energy and heat, reducing electricity costs and keeping your system cooler and quieter.

Will the RM1000x work with my RTX 4090 or RTX 5090?

Yes. The RM1000x delivers 1,000W of continuous power and is ATX 3.1-compliant, meeting NVIDIA’s requirements for RTX 4090 (450W) and RTX 5090 (575W) with headroom for the rest of your system. The included 12V-2x6 cable handles GPU power spikes up to 200% for milliseconds without tripping protections.

How loud is the RM1000x under gaming loads?

Cybenetics A-rated for noise, meaning under 30 dBA across typical gaming loads—quieter than a whisper. Zero RPM mode keeps the fan completely off during light use. Even at full load, the 140mm fan stays quieter than smaller 120mm fans found in competing PSUs.

Can I use my existing CORSAIR Type 4 cables with the RM1000x?

Yes, if they're Type 4 cables. The RM1000x uses CORSAIR's Type 4 connector standard, so cables from other Type 4 PSUs (RMx, RMi, HXi, AXi series) are fully compatible. Never mix cables from different PSU brands or connector types—this can potentially damage components.

What does the manual fan control knob on the RM1000x do?

It overrides Zero RPM mode and the automatic fan curve, forcing the fan to spin at higher speeds. Use it when you want maximum airflow to exhaust heat from your case during extended gaming, stress testing, or in warm ambient conditions. Leave it off for normal quiet operation.

Is 1,000W enough for an Intel i9-14900K and RTX 4090?

Yes, with headroom. An i9-14900K draws up to 253W, RTX 4090 up to 450W, plus 100-150W for the rest of the system components, totals around 800-850W peak. The RM1000x provides 150W+ of overhead for power spikes and future GPU upgrades.

What cables are included in the CORSAIR RM1000x?

Included: 1x 24-pin ATX (610mm), 2x EPS 8-pin (4+4) CPU (750mm), 1x 12V-2x6 PCIe (650mm), 4x PCIe 8-pin (6+2) (650mm), 3x SATA cables with 4 connectors each (850mm), 2x PATA cables with 3 connectors each (750mm). All cables are embossed Type 4 with low-profile combs.

Does the RM1000x support dual CPU motherboards or workstations?

Yes. The RM1000x includes two EPS 8-pin (4+4) CPU power cables, supporting dual-CPU workstation motherboards or high-power single-CPU boards that require two EPS connectors (like some X299 or TRX40 boards).

How does the RM1000x compare to the RM1000x SHIFT?

The RM1000x SHIFT relocates the cable connectors to the side of the PSU for cleaner cable routing in reverse-connector cases. Otherwise, specs are identical: same 1,000W output, Cybenetics Gold efficiency, ATX 3.1 compliance, and 10-year warranty. Choose SHIFT for reverse-connector builds, standard RM1000x for traditional cases.

Can I mount the RM1000x with the fan facing up or down?

Both orientations work. Fan-down (intake from bottom) is ideal if your case has a ventilated PSU compartment—cooler air and less dust. Fan-up (intake from inside case) works if the bottom vent is blocked, or you want to exhaust some case heat. Zero RPM mode works in either orientation.

What protections does the RM1000x have?

Full suite: OVP (over-voltage), UVP (under-voltage), OCP (over-current), OPP (over-power), SCP (short-circuit), and OTP (over-temperature). These protections shut down the PSU before damage occurs to your components during power anomalies or faults.

Will the RM1000x fit in my case?

The RM1000x measures 160mm (L) x 150mm (W) x 86mm (H)—standard ATX dimensions. It fits any case with an ATX PSU mount. Check your case specs to confirm clearance, especially in compact cases with drive cages near the PSU area.

Does the CORSAIR RM1000x support ATX 3.1 Modern Standby?

Yes. ATX 3.1 compliance includes Modern Standby support, allowing your PC to wake from sleep states faster and maintain network connectivity in low-power modes—similar to how smartphones stay connected while sleeping.

What's the warranty on the CORSAIR RM1000x?

10 years. CORSAIR backs the RM1000x with a decade-long warranty covering defects and failures. The 100,000-hour MTBF rating means it's built to last well beyond the warranty period, even with 24/7 operation.

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In Stock

RMx Series RM1000x Fully Modular Power Supply (UK)

Power your next build with a CORSAIR RMx Series fully modular PSU for quiet, Cybenetics Gold-certified efficient performance.

Includes

Fully modular, Type-4 connectors
Cybenetics Gold-certified
ATX 3.1 compliant, supporting PCIe 5.1
Zero RPM Fan Mode for near-silent operation at lower loads

£164.99

This product qualifies for free shipping

Order today for estimated delivery by 04/06/2026-04/07/2026

60-days risk free returns

PSU Wattage

1000 Watts

750 Watts

850 Watts

SKU: CP-9020271-UK

£164.99

This product qualifies for free shipping

Order today for estimated delivery by 04/06/2026-04/07/2026

60-days risk free returns

Overview
Tech Specs
Downloads
Accessories | Parts
Guides

THE GOLD STANDARD OF POWER SUPPPLIES

RMx SERIES

FULLY MODULAR CABLING

CYBENETICS GOLD-CERTIFIED

ATX 3.1 COMPLIANT, SUPPORTING PCIe 5.1

RMx SERIES

THE GOLD STANDARD OF POWER SUPPLIES

QUIET, DEPENDABLE, EFFICIENT

Our best-selling PSU, updated. This fully modular, low noise, Cybenetics Gold-certified power supply is ATX 3.1 compliant and ideal for delivering dependable power to today's top-performing PCs.

ATX 3.1 CERTIFIED

Be confident your PSU supports the latest sleep and hibernate modes and modern CPU and GPU requirements. ATX 3.1 compliance ensures full compatibility with modern components and power states.

PSU RATINGS EXPLAINED

Image for illustrative purposes only. Actual product may vary.

CLEAN CABLING, EVERY TIME

FULLY MODULAR CONNECTORS

Connect only what you need using sleek embossed cables with low-profile combs to make installations a breeze.

Native 12V-2x6 GPU cable included for use with modern graphics cards such as the NVIDIA^® GeForce RTX™ 40 Series.

THE STRONG, SILENT TYPE

140mm LOW-NOISE FAN

A fluid dynamic bearing fan with magnetic dome structure keeps noise to a minimum, with Zero RPM mode to eliminate fan noise completely at low to medium loads.

ENGAGE MANUAL CONTROLS

MANUAL FAN OVERRIDE KNOB

Want to get more air through the PSU or to exhaust some heat from your case? You can override the Zero RPM Mode and low-noise profile of the RMx Series with our manual fan override knob, increasing fan speed and airflow.

TEN-YEAR WARRANTY

WORLD-CLASS SUPPORT

Our award-winning service means you can enjoy your gear worry-free.

RM1000x POWER TABLE

MODEL

RPS0198

PART NO.

75-005877

AC INPUT RATING

AC INPUT

100–240V

INPUT CURRENT

12A - 5A

FREQUENCY

47~63Hz

MAX LOAD

MAX OUTPUT

+3.3V

20A

150W

+5V

20A

+12V

83.3A

1000W

+5VSB

15W

TOTAL POWER

1000W

RM1000x CABLE LISTING

QTY

CABLE

CONNECTORS PER CABLE

TOTAL CONNECTORS

CONNECTOR SPACING

TOTAL LENGTH

CABLE TYPE

QTY

CABLE

Modular ATX Cable (24-pin)

CONNECTORS PER CABLE

TOTAL CONNECTORS

CONNECTOR SPACING

TOTAL LENGTH

610mm
(± 10mm)

CABLE TYPE

Embossed

QTY

CABLE

EPS / ATX 12V 8-pin (4+4)

CONNECTORS PER CABLE

TOTAL CONNECTORS

CONNECTOR SPACING

TOTAL LENGTH

750mm
(± 10mm)

CABLE TYPE

Embossed

QTY

CABLE

PCIe 12V-2x6-pin (12+4)

CONNECTORS PER CABLE

TOTAL CONNECTORS

CONNECTOR SPACING

TOTAL LENGTH

650mm
(± 10mm)

CABLE TYPE

Embossed

QTY

CABLE

PCIe 8-pin (6+2)

CONNECTORS PER CABLE

TOTAL CONNECTORS

CONNECTOR SPACING

TOTAL LENGTH

650mm
(± 10mm)

CABLE TYPE

Embossed

QTY

CABLE

SATA (4 Connectors)

CONNECTORS PER CABLE

TOTAL CONNECTORS

CONNECTOR SPACING

505mm,
115mm,
115mm,
115mm

TOTAL LENGTH

850mm
(± 10mm)

CABLE TYPE

Embossed

QTY

CABLE

PATA (3 Connectors)

CONNECTORS PER CABLE

TOTAL CONNECTORS

CONNECTOR SPACING

550mm, 100mm, 100mm

TOTAL LENGTH

750mm
(± 25mm)

CABLE TYPE

Embossed

Overview

Key Features

1,000W Power Capacity (ATX 3.1 Certified)
Powers flagship GPUs such as the RTX 4090 and RTX 5090, with headroom for overclocking and system expansion. ATX 3.1 certification ensures compatibility with modern components and power states, including support for handling GPU power spikes up to 200% for milliseconds - critical for preventing shutdowns during gaming.
Cybenetics Gold Efficiency & A-Rated Noise
Gold efficiency means less energy is wasted as heat, resulting in lower electricity bills over the PSU’s lifetime and quieter operation since the fan doesn’t need to work as hard. The Cybenetics A noise rating confirms acoustics under 30 dBA across typical loads—quieter than a whisper, letting you focus on the game, not the hardware.
Zero RPM Fan Mode (140mm FDB Fan with Manual Override)
The fan completely stops spinning during web browsing, light gaming, and productivity work, eliminating fan noise when you don’t need full cooling. When airflow is needed, the 140mm fan moves more air at lower RPM than smaller fans, staying quiet even under load. The manual override knob lets you force the fan to maximum speed to exhaust heat from the case during extended gaming sessions or stress testing.
Fully Modular Type 4 Cables (100% Japanese Capacitors)
Connect only the cables you need—no excess clutter choking airflow or complicating builds. Type 4 cables work across CORSAIR’s modular PSU lineup, so custom-sleeved cables carry forward to future upgrades. Premium Japanese capacitors rated for 105°C (vs. 85°C in budget PSUs) ensure stable voltage delivery and a longer lifespan, which is especially critical in systems running 24/7 or in warm environments. Backed by a 10-year warranty and 100,000-hour MTBF.

Use Cases

High-power GPU build (RTX 4090/5090, 1000W+, 12VHPWR native):
1,000W continuous at 50°C with ATX 3.1 certification and a native 12V-2x6 cable rated for 600W - no adapters required. Handles 200% GPU power spikes without shutdown. 300W overhead beyond RTX 4090 and flagship CPU loads. 105°C Japanese capacitors ensure stable voltage during extended overclocking sessions.
Quiet system builder (zero-RPM mode, Platinum/Titanium efficiency):
Zero RPM mode completely stops the 140mm fan at loads below 40% - silent during productivity and light gaming. When needed, the fluid-dynamic bearing design stays under 30 dBA at gaming loads (Cybenetics A rating). Platinum efficiency reduces heat, helping to keep fan speeds lower. The manual override knob forces airflow during stress testing and then returns to silence.
Future-proof upgrader (ATX 3.0, headroom for next-gen GPUs):
ATX 3.1 with native 12V-2x6 supports RTX 40/50 Series and future GPUs. 1,000W power supply handles 450-575W graphics cards and high-power CPUs without strain. Type 4 cables are compatible with future CORSAIR PSUs. 10-year warranty and 100,000-hour MTBF outlast multiple GPU generations—upgrade graphics three times, buy PSU once.
Reliable workstation user (long warranty, full protections, 24/7 operation):
Rated for continuous 50°C operation with 100% Japanese 105°C capacitors, the RM1000x handles 24/7 workloads in warm environments. Full protection suite prevents faults from damaging Threadripper CPUs or professional GPUs. 100,000-hour MTBF means 11+ years of continuous operation, backed by a 10-year warranty.

FAQs

Tech Specs

Cybenetics Efficiency	Gold
Cybenetics Noise	A
PATA Connector	6
EPS Connector	2
SATA Connector	12
Modern Standby	Yes
Dimensions	160x150x86
Modular	Fully
Cable Type	Type 4