Corsair
RMi Series RM1000i
Best high-capacity power supply for demanding enthusiast PC builds.
The CORSAIR RMi Series RM1000i is a 1000-watt power supply unit designed for high-performance PCs. It features 80 PLUS Gold certification for excellent efficiency, reducing heat and operating costs. This fully modular PSU offers extremely tight voltage control and virtually silent operation thanks to its Zero RPM Fan Mode, which keeps the fan off at lower loads. Premium internal components, including 100% Japanese 105°C capacitors, ensure long-term reliability and solid power delivery. The configurable +12V rail allows for single-rail or multi-rail operation, providing flexibility for various system builds.
$199.99
Owner Satisfaction
4.7
/ 5
Category Rank
28
/ 1062
#28 in Computer Power Supplies
Price vs Category Average
-79%
Below average
EPS Connector
2
Who it's for
- Eco-conscious users prioritizing quiet, energy-efficient system performance
- System builders seeking long-term reliability and component longevity
Who should skip it
- Budget-focused builders looking for cost-effective power solutions
- Minimalists preferring plug-and-play hardware without extra software management
- Average gamers who do not require extreme power overhead
Performance breakdown
Voltage Stability
Tight regulation ensures consistent power delivery under heavy system loads.
Acoustic Performance
Zero RPM mode keeps the unit silent during standard desktop tasks.
Build Reliability
Japanese capacitors provide long-term durability for high-end gaming rigs.
Cable Management
Fully modular design simplifies installation and keeps your case clutter-free.
System Monitoring
iCUE integration offers precise real-time control over power distribution.
Efficiency Rating
80 PLUS Gold certification minimizes wasted energy and thermal output.
Key Specs
EPS Connector
2
SATA Connector
12
Fan Bearing Technology
Fluid Dynamic Bearing
Dimensions
150mm x 86mm x 180mm
Modular
Fully
PSU Compatibility
ATX12V v2.4 and EPS12V 2.92 standards
Cable Type
Sleeved and Flat Black Cables
Floppy Connector
2
Features
- Extremely tight voltage control for stable power delivery.
- Virtually silent operation at low to medium loads with Zero RPM Fan Mode.
- Fully modular cable set for easier installation and cable management.
- 100% Japanese 105°C capacitors for enhanced reliability and lifespan.
- Configurable +12V rail for flexible power distribution.
- Intelligent control and monitoring via CORSAIR iCUE software.
What customers say
Customers consistently praise the Corsair RM1000i for its exceptional reliability and premium build quality. Many highlight the fully modular design which significantly simplifies installation and cable management, contributing to a clean system build. The quiet operation, especially the Zero RPM fan mode at low to medium loads, is frequently appreciated, enhancing the overall user experience. This power supply is seen as a dependable and high performing component, justifying its position in enthusiast builds.
Know before you buy
Zero RPM mode allows the 140mm fan to remain completely stationary during low to medium loads. This ensures the power supply operates in total silence when you are performing light tasks like web browsing or document editing.
Yes, the RM1000i features a toggle that allows you to choose between a single +12V rail or a multi-rail configuration. This gives you the flexibility to prioritize high-current delivery for a single powerful component or enhanced protection for multiple circuits.
By connecting the PSU to your motherboard via the included USB cable, iCUE allows you to monitor real-time power consumption, efficiency, and fan speeds. You can also use the software to adjust the fan curve and toggle the +12V rail settings.
Yes, the RM1000i is fully multi-GPU ready. It includes eight PCIe connectors and provides 1000 watts of continuous power, making it capable of supporting high-end gaming rigs with multiple graphics cards.
A fully modular design means every cable can be detached from the power supply. This makes installation significantly easier and helps you maintain a clean, clutter-free interior by only using the cables your specific build requires.
The RM1000i is built with 100% Japanese 105°C capacitors, which are industry-standard for high reliability and longevity. This build quality is backed by a 10-year warranty, ensuring the unit is designed to last through multiple system upgrades.
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