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CORSAIR RMe Series RM1000e 1000 W ATX 3.1 Compatible Cybenetics Gold Full Modular Power Supply
- Fully Modular PSU: Reliable and efficient, low-noise power supply with fully modular cabling, so you only have to connect the cables your system build needs.
- Intel ATX 3.1 Certified: Compliant with the ATX 3.1 power standard, supporting PCIe 5.1 platform withstands 2x transient power excursions from the GPU.
- Keeps Quiet: A 120mm rifle bearing fan with a specially calculated fan curve keeps fan noise down, even when operating at full load.
- 105°C-Rated Capacitors: Delivers steady, reliable power and dependable electrical performance.
- Modern Standby Compatible: Extremely fast wake-from-sleep times and better low-load efficiency.
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Overview
Specs
Reviews (1,404)
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2025 RME SERIES, RM1000E, 1000 WATT, ATX 3.1, PCIE 5.1, CYBENETICS GOLD CERTIFIE
Warranty & Returns
Warranty, Returns, And Additional Information
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
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Manufacturer Contact Info
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- Support Phone: 1-888-222-4346
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The CORSAIR RMe Series RM1000e is a 1000W fully modular ATX 3.1 power supply built for high-performance gaming and creator PCs that need strong GPU support, clean cable management, and quiet operation.
Recommended For
- Builders pairing a high-end current-gen GPU with a modern ATX 3.1 system who want a native 12V-2x6/12VHPWR connection instead of relying on adapter cables.
- PC builders planning a single-GPU workstation or gaming rig with substantial power headroom, especially if they expect transient GPU power spikes and want ATX 3.1 compliance called out by reviewers.
- Builders who care about clean cable management in a standard ATX case and want a fully modular PSU with a relatively compact 160 mm depth for easier fitment than many larger 1000W units.
- Users shopping in the upper-midrange PSU tier who want solid electrical performance and efficiency validation from established reviewers without moving up to a pricier flagship PSU line.
Real-World Use Scenarios
- Building a high-end gaming PC with one modern flagship GPU, the user wants a PSU that can handle heavy gaming spikes without adapter clutter; in practice, the RM1000e is commonly used for RTX 4090/5080-class builds and is expected to run them with comfortable headroom when the native 12V-2x6 cable is installed correctly.
- In a clean mid-tower build, the user wants fewer unused cables and easier cable routing; the fully modular design and short 160 mm chassis make the RM1000e easier to fit and manage than longer 1000 W units, especially in cases with tight PSU shrouds.
- For a gaming or creator PC that spends much of the day at light or moderate load, the user wants the system to stay unobtrusive on the desk; real-world testing indicates the RM1000e often stays very quiet at lower loads because its fan does not need to spin constantly, with fan noise becoming more noticeable only as load rises.
- Upgrading from an older PSU for a next-gen GPU, the user wants to avoid relying on multi-plug adapters and transient-related shutdown concerns; the RM1000e is positioned and reviewed as an ATX 3.1 unit with native support for current GPU power cabling, so the typical experience is a simpler upgrade path for current PCIe 5.x graphics cards.
- For a workstation that alternates between idle, sleep, and short bursts of work, the user wants stable everyday behavior rather than just maximum wattage; the RM1000e is suited to this kind of daily use, with modern standby support and efficiency-focused tuning that align with fast wake and low-load operation.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | High-power ATX 3.1 desktop builds and systems using PCIe 5.1 GPUs that need a fully modular 1000 W power supply |
| Power And Output | 1000 W total output with DC rails +3.3V@20A, +5V@20A, [email protected], +5Vsb@3A |
| Certification And Efficiency | Cybenetics Gold efficiency rating; ATX 3.1 compatibility specified |
| Form Factor And Dimensions | ATX-compatible full-modular PSU, maximum PSU length 160 mm; unit dimensions 5.91 L x 5.51 W x 3.35 H inches; weight 3.62 pounds |
| Cooling And Fans | Air-cooled design with a single 120 mm fan |
| Connectors And Cables | Fully modular cabling; includes 24-pin ATX main connector and a 12VHPWR (12+4) PCIe GPU connector |
| Electrical Input And Frequency | AC input 100–240 V (minimum 100 V, maximum 240 V); input frequency 47–63 Hz |
| Model Identifiers | CORSAIR RMx Series RM1000e — model/part CP-9020297-NA; manufacturer Corsair; style name 'RMe (2025) ATX 3.1, PCIe 5.1' |
| Compatibility And Devices | ATX 3.1 and PCIe 5.1 mentioned (style name); listed compatible device: Monitor |
Reference Q&A
Q: Should I buy the Corsair RM1000e or RM850e for a high-end gaming PC?
A: Choose the RM1000e if you want more headroom for power-hungry GPUs, future upgrades, or lower percentage load during gaming. Choose the RM850e if your build already fits comfortably within 850W and you want to keep cost and excess capacity down. Both are part of Corsair's updated ATX 3.1 RMe line, so the main decision is capacity rather than platform generation.
Q: Is the Corsair RM1000e or RM1000x a better buy?
A: Choose the RM1000e if you want a lower-tier 1000W ATX 3.1 option with compact dimensions and modern GPU power support. Choose the RM1000x if you want Corsair's more premium positioning, lower-noise focus, and extra features such as the updated RMx platform's manual fan control. In most buying scenarios, RM1000e is the value-oriented 1000W choice, while RM1000x is the better fit for users who prioritize refinement over price.
Q: Corsair RM1000e vs be quiet! Pure Power 12 M 1000W: which one makes more sense?
A: Choose the RM1000e if you specifically want Corsair's newer ATX 3.1-era RMe model with native 12V-2x6 support and a short chassis that can be easier to fit in tighter cases. Choose the Pure Power 12 M 1000W if quiet-operation priorities are higher and an ATX 3.0 design still meets your needs. This is usually a choice between newer Corsair platform updates and be quiet!'s strong quiet-system positioning.
Q: Is the Corsair RM1000e a worthwhile upgrade over an older ATX 3.0 or non-PCIe 5 PSU?
A: Yes, the RM1000e is a practical upgrade if your current PSU lacks native support for modern high-power GPUs or you want an ATX 3.1 unit built for newer transient-load requirements. The gain is mostly about cleaner compatibility, updated cabling, and upgrade readiness rather than a dramatic change in everyday PC performance. If your existing high-quality PSU already has enough wattage and proper GPU cabling, the upgrade is more about convenience and future-proofing than necessity.
Q: Corsair RM1000e vs Seasonic Focus GX-1000 ATX 3: which should I choose?
A: Choose the RM1000e if you want Corsair's newer ATX 3.1 implementation, compact PSU length, and a value-first 1000W option aimed at current GPU standards. Choose the Seasonic Focus GX-1000 if you prefer Seasonic's in-house platform, bundled accessories, and a model that is frequently considered for buyers who value established platform reputation. For most shoppers, this comparison comes down to newer spec alignment on the Corsair side versus platform preference and brand trust on the Seasonic side.
Q: Is the RM1000e a good choice for an RTX 4080, RTX 4090, or similar high-end GPU build?
A: Yes for most high-end single-GPU builds. The RM1000e is a 1000W ATX 3.1 power supply with a native 12VHPWR / 12V-2x6 style GPU connector, so it is designed for modern GPUs that need high transient power handling. It makes the most sense for builders using a flagship or near-flagship graphics card and wanting extra upgrade headroom. It is less compelling for midrange systems that will never need close to 1000W.
Q: Who is the RM1000e best suited for?
A: It is best suited for gaming or workstation PCs that use a power-hungry GPU, need modern ATX 3.1 compatibility, or want room for future upgrades. It is a practical fit for builders who want a fully modular 1000W unit without stepping up to a more expensive Platinum model. It is usually overkill for office PCs, entry-level gaming builds, or systems with modest graphics cards.
Q: Is the RM1000e quiet enough for a low-noise gaming or work PC?
A: Generally yes. The RM1000e is positioned as a low-noise PSU and uses a 120mm fan with a tuned fan curve, so it should suit most users who want a quieter build. The main trade-off is that it is not the premium quietest option in Corsair's lineup; buyers focused on the lowest possible noise may still prefer a higher-end model such as an RMx or HXi unit.
Q: What are the main trade-offs versus the Corsair RM1000x or another higher-end 1000W PSU?
A: The RM1000e is the value-oriented choice: you still get 1000W, full modular cabling, and current-gen ATX support, but with fewer premium touches than an RM1000x-class model. The usual trade-offs are a simpler fan and acoustic design, less premium cable and chassis refinement, and lower overall positioning in the product stack. If price matters more than getting Corsair's more premium 1000W option, the RM1000e is the more practical buy.
Q: Does the RM1000e include the cables most builders need, or should you expect extra cable purchases?
A: For most standard builds, it should include the essential cables you need, including modern GPU power support and modular cables for only the components you install. Extra cable purchases are more likely only if you want custom sleeved cables, have an unusually large case, or need a specific cable aesthetic or routing length.
Q: Is the Corsair RM1000e a good buy for a modern high-end gaming PC?
A: Yes, if you want a 1000 W PSU for a newer high-end build and specifically want ATX 3.1 support, full modular cabling, and a native 12VHPWR connector. It is most suitable for GPUs and CPUs that can have high transient power spikes. The main trade-off discussed by buyers is noise behavior on some units, so it is a stronger fit for performance-focused builds than for users who are highly sensitive to coil whine or clicking sounds.
Q: Who is the RM1000e best suited for?
A: It is best suited for builders who need substantial power headroom, want a native 12VHPWR cable, and prefer a compact fully modular 1000 W unit. It makes the most sense for upper-midrange to high-end gaming or workstation systems, especially where future GPU upgrades are likely. It is less suitable for low-power builds, where 1000 W may be unnecessary.
Q: What are the main trade-offs of choosing the RM1000e instead of a more premium PSU?
A: The main trade-offs are acoustics and positioning in the lineup. Based on repeated buyer discussion, some units are associated with coil whine, chirping, ticking, or popping noises. Relative to more premium alternatives, the RM1000e is generally chosen for modern feature support and wattage value rather than for being the quietest or most premium-feeling option.
Q: Should you avoid the RM1000e if you care a lot about low noise?
A: Possibly. The product is designed as a low-noise PSU, but repeated Reddit discussion around the RM1000e includes reports of coil whine, ticking, and crackling on some units. That does not mean every unit has the issue, but if silent operation is a top priority, this model carries more buyer hesitation than a PSU chosen primarily for acoustics.