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Corsair · 1000 W · ATX

CORSAIR RM1000x

ATX 3.1 · 80 PLUS Gold · Modular

Capability
80
Cap / price
48
Wattage value
48
Amazon
$167
CORSAIR RM1000x
View CORSAIR RM1000x Gallery in high resolution
$167
Available on Amazon Updated Aug 30, 2026
Capability80.2
Capability / price48.1
Wattage value47.9
$167 on Amazon PSU table Compare this PSU

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Written analysis

CORSAIR RM1000x at a glance

The CORSAIR RM1000x is a 1000 W ATX power supply built to the ATX 3.1 generation. Efficiency is listed as 80 PLUS Gold. Cables are modular. It supports fan-stop at low load.

The calculated capability score is 80.2, averaging the available wattage, recorded efficiency percentage, and warranty inputs against fixed references. Listed warranty is 10 years. +12V output is 83 A.

Best fit: Systems whose component power budget calls for a supply rated at 1000 W or more.

Platform and cooling

Dimensions are listed as 160x150x86. Cooling fan size is 140 mm. The unit uses 1 +12V rail at up to 83.00 A per rail. Certifications include 80 PLUS Gold.

Current value

At $167, price per kilowatt is $166.99. Capability / price is 48.1 and wattage value is 47.9. Compare nearby supplies below; wattage alone does not determine value.

Unit data

Full specifications

Wattage, efficiency, platform size, electrical outputs, connectors, cooling, and value in one technical sheet.

General

Manufacturer
Corsair
PSU
CORSAIR RM1000x
Launch price
—
Amazon price
$167
Amazon availability
Available
Price updated
Aug 30, 2026

Power & efficiency

Wattage
1000 W
Efficiency
80 PLUS Gold
Recorded efficiency
91%
Warranty
10 years

Value

Amazon price
$167
Price / kW
$166.99
Capability
80.2
Capability / price
48.1
Wattage value
47.9

Platform & size

ATX generation
3.1
Form factor
ATX
Dimensions
160x150x86
Modular
Yes
Fanless
No

Electrical

Input voltage
100-240
+12V output
83 A
+5V output
20 A
+3.3V output
20 A
+12V rails
1
Max amps / rail
83.00 A

Cooling & build

Fan size
140 mm
Fan stop
Yes
Certifications
80 PLUS Gold

Additional information

Also listed as
RM1000x
Color
Black
Note
Hi quality and good overall performance

Amazon

Price history

Nearby capability

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

Fully Modular: Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the cables your system needs.

Cybenetics Gold-Certified: Rated for up to 91% efficiency, resulting in lower power consumption, less noise, and cooler temperatures.

ATX 3.1 Compliant: Compliant with the ATX 3.1 power standard from Intel, supporting PCIe 5.1 and resisting transient power spikes.

Native 12V-2x6 Connector: Ensures compatibility with the latest graphics cards with a direct GPU to PSU connection – no adapter necessary.

Embossed Cables with Low-Profile Combs: Sleek, ultra-flexible embossed cables look great and make installing and connecting the RMx a breeze.

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