Power supply · MODEL NOTES
CORSAIR RM1000x ATX 3.1 (CP-9020271-NA)
High output with a more explicit conventional-cable inventory
RM1000x CP-9020271-NA is a useful comparison when a demanding build needs both substantial capacity and several separate conventional PCIe cable runs. It is not simply a larger RM750x: the inventory changes with wattage. Compare its four conventional runs with the shorter RM1000e arrangement, then decide which better matches the actual GPU, motherboard and enclosure rather than buying by series reputation alone.
Consider it when
- A verified high-demand system that benefits from four documented conventional PCIe runs.
Look again when
- The machine does not justify 1000 W or the case leaves insufficient routing space.
THE SPACE IT NEEDS
Leave room beyond the PSU body
- PSU body length
- 160mm
The body length excludes the working space needed for plugs and cable bends. Drive cages and the case layout can reduce that space.
Check power and cable requirements ↗Based on the manufacturer specification record, checked . Check the exact revision and installation instructions before buying.
The checks that can change your choice
Match the 1000 W article and its actual connector budget
This standard 2024 RMx entry records four separate PCIe cables, two EPS cables, a 600 W native 12V-2x6 cable and a 160 mm body. Those individual features still sit within the total supply limit. Use the Type 4 cables approved for this exact model and check the required GPU routing.
Check the whole power path
Compare the CPU and exact graphics card requirements with the PSU capacity and included connector arrangement. Count independent cable runs where the GPU manual requires them. Use only cables approved for this exact power supply; similar-looking modular plugs do not establish compatible wiring.
Published specifications
1000 W fully modular ATX PSU; ATX 3.1 / PCIe 5.1; Type 4 cables; native 12V-2x6; 160 × 150 × 86 mm.
| Brand | CORSAIR |
|---|---|
| Exact model | RM1000x ATX 3.1 (CP-9020271-NA) |
| Manufacturer model number | CP-9020271-NA |
| Hardware revision | 2024 ATX 3.1 series |
| Form factor | ATX |
| PSU rated output | 1000 W |
| PSU body length | 160 mm; cable connectors need additional space |
| Direct PCIe 6+2-pin ends | 4 |
| Independent direct PCIe cables | 4 |
| Native 16-pin GPU cable | 1 supplied connection(s) · 12V-2x6; use the exact model’s supplied cables |
| Native 16-pin cable rating | 600 W |
| CPU EPS 8-pin ends | 2 |
| Independent EPS cables | 2 |
| SATA power connectors | 12 |
| SATA power cables | 3 |
Exact CP-9020271-NA standard RMx model, not SHIFT or the 2021 revision. Includes 4 separate conventional PCIe 6+2 cables and two EPS 4+4 cables. Use only cables approved for this exact PSU.
A different choice worth checking
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Sources and review notes
RigAtlas connects manufacturer specifications to component choices. This page is document-based analysis; it does not claim a hands-on test or a current store offer.
- CORSAIR — exact model specificationsEvidence checked
- CORSAIR — supporting specification or manualEvidence checked
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