CORSAIR RM1000e ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – 12V-2x6 Cable Included, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black
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AI Verdict
This 1000W fully modular ATX 3.1 PSU with a native 12V-2x6 cable is for builders needing modern GPU power delivery without breaking the bank.
This 1000W fully modular power supply is a strong fit for modern gaming and workstation PCs, especially those with current-generation GPUs, due to its ATX 3.1 and PCIe 5.1 compliance and included 12V-2x6 cable. Its Cybenetics Gold efficiency and 105°C-rated capacitors ensure stable power delivery.
If you need an even longer warranty or desire premium individually sleeved cables, look for PSUs in Corsair's higher-end RMx or HXi series.
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Pros
- Includes a native 12V-2x6 cable, directly supporting high-power PCIe 5.1 GPUs without adapters.
- Compliant with the ATX 3.1 power standard, handling 2x transient power excursions from the GPU.
- Features 105°C-rated industrial-grade capacitors for consistent, reliable power delivery.
- Cybenetics Gold certified, indicating up to 90% efficiency for lower power consumption and heat.
- Fully modular cabling allows for connecting only necessary cables, reducing clutter.
- A 120mm rifle bearing fan with a calculated fan curve keeps noise levels down even under full load.
Cons
- The main motherboard power cable is stiff, making routing and bending difficult in some cases.
- Comes with a 7-year warranty, which is shorter than the 10-12 year warranties offered on some higher-end PSUs.
- Cables are embossed, not individually sleeved, which some users might prefer for aesthetics.
Dimension Scores
Delivers 1000W with Cybenetics Gold efficiency (up to 90%) and ATX 3.1 compliance, handling 2x transient power excursions.
Equipped with a 120mm rifle bearing fan and a calculated fan curve to maintain low noise even at full load.
Utilizes 105°C-rated industrial-grade capacitors and a robust resonant LLC topology with DC-DC conversion for reliable performance.
Fully modular design minimizes cable clutter, and its 140mm length aids in easier routing, though the main motherboard cable is stiff.
Best For
- New PC builds featuring high-end PCIe 5.1 GPUs like the RTX 4090.
- Systems requiring 1000W of power with future upgrade headroom.
- Compact PC cases due to its 140mm length.
Not Recommended For
- Users who prioritize a 10+ year warranty above all else.
- Builders who require premium individually sleeved cables directly out of the box.
Watch Out For
- The main motherboard cable's stiffness can make installation challenging, potentially stressing the motherboard connector if not carefully managed.
- While generally quiet, a few users have reported noise issues, though this isn't a widespread complaint.
- The 7-year warranty is shorter than the 10-12 year warranties found on some competing higher-tier power supplies.
Full Specifications
| ASIN | B0FLFH8922 |
| Brand | Corsair |
| Color | Black |
| Series | RM1000e |
| Wattage | 1000 watts |
| Model Name | RM1000e |
| Form Factor | ATX |
| Item Weight | 3.62 pounds |
| Manufacturer | Corsair |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 1000 Watts |
| Item model number | CP-9020297-NA/AM |
| Compatible Devices | Monitor |
| Product Dimensions | 5.91 x 5.51 x 3.35 inches |
| Item Dimensions LxWxH | 5.91 x 5.51 x 3.35 inches |
| Item dimensions L x W x H | 5.91 x 5.51 x 3.35 inches |
What Buyers Say
Users are mostly stoked about this PSU because it's ready for the newest GPUs with its ATX 3.1 and PCIe 5.1 support, including that crucial 12V-2x6 cable. The fully modular design gets a lot of love for keeping builds tidy, and many report it runs super quiet, even when their systems are really pushing it. However, a few folks have gripes about the main motherboard cable being a real pain to bend, and the 7-year warranty feels a bit short compared to some other high-end options.
“Dude, this thing powers my 4090 without a single hiccup, but seriously, that 24-pin cable almost broke my fingers trying to bend it, what gives?!”
Common Praise
- Native 12V-2x6 cable included, making it perfect for RTX 40-series cards.
- Fully modular design simplifies cable routing and reduces case clutter.
- Operates very quietly, with the fan rarely spinning up noticeably.
- Compact 140mm length fits easily into a variety of PC cases.
- Provides stable and consistent power output for demanding hardware.
Common Complaints
- The main motherboard 24-pin cable is notably stiff and hard to manage.
- The 7-year warranty is considered less competitive than the 10-12 years offered by some other brands or higher-tier models.
- Cables are embossed rather than individually sleeved, which some users find less aesthetically pleasing.
Ownership Tips
- The 12V-2x6 cable is long enough for most builds, reaching the GPU without excessive tension.
- Fan noise remains minimal even after hours of heavy gaming or rendering.
- The compact 140mm size genuinely helps with cable management in smaller cases.
- The power delivery feels rock-solid, no unexpected shutdowns or instability under load.
Frequently Asked Questions
Does this PSU come with the new 12V-2x6 cable for RTX 40-series GPUs?
Yes, it includes a native 12V-2x6 cable, capable of delivering up to 600W, which is essential for modern high-power graphics cards.
Is this power supply quiet during operation?
It features a 120mm rifle bearing fan with a specially calculated fan curve designed to keep fan noise down, even when the PSU is operating at full load.
What is the warranty period for this power supply?
The CORSAIR RM1000e comes with a 7-year warranty.
Is this PSU compatible with older motherboards or only ATX 3.1?
While it's ATX 3.1 certified, it is backward compatible with older ATX standards, so it will work with most modern motherboards.
How compact is this power supply?
It has a compact 140mm-long casing, which helps ensure an easy fit in many modern enthusiast PC cases.
Buying Guide
When you're looking at a power supply, you're basically picking the heart of your PC. You need enough wattage to feed all your components, especially your graphics card, and good efficiency means less wasted power and heat. Modularity is key for keeping your build clean, and modern standards like ATX 3.1 and PCIe 5.1 mean it's ready for today's power-hungry GPUs. Don't cheap out here; a bad PSU can take out your whole system.
wattage (1000 watts)
ATX 3.1 & PCIe 5.1 Ready
Fully Modular
Cybenetics Gold Efficiency
Alternatives
If this PSU doesn't quite fit, look for units with a longer warranty period (10+ years) or those that explicitly state individually sleeved cables for a premium aesthetic.
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