CORSAIR RM750e Fully Modular Low-Noise ATX Power Supply - ATX 3.1 & PCIe 5.1 Compliant - 105°C-Rated Capacitors - Cybenetics Gold Efficiency
- ATX 3.1 Compatible
- Full Modular
- Cybenetics Gold
- 100 - 240 V 47 - 63 Hz
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Overview
Specs
Reviews (1,406)
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 5 years
- Limited Warranty period (labor): 5 years
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Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
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The CORSAIR RM750e is a 750W fully modular ATX 3.1 power supply with PCIe 5.1 support and Cybenetics Gold efficiency, making it a strong fit for modern mid- to high-performance gaming PCs or creator builds that want clean cable management and broad power compatibility.
Recommended For
- Builders putting together a mid-range to upper-mid-range gaming PC who want a current-standard 750W PSU with a native 12V-2x6 cable for newer GPUs, without stepping up to a larger or pricier unit.
- PC builders working in compact ATX cases or cable-constrained builds who benefit from a short 140mm chassis and fully modular cabling for easier routing and cleaner assembly.
- Value-focused upgraders replacing an older PSU for everyday gaming and mainstream productivity, where review testing points to solid electrical performance and current protections at a mainstream price tier.
- Users who want a quiet desktop at idle or light load, such as home office users with a gaming-capable PC that spends much of the day web browsing, working, or streaming.
Real-World Use Scenarios
- Building a mid-to-upper-range gaming PC with one modern graphics card: users can run a typical 1440p gaming setup on a 750W unit and use the included native 12V-2x6/PCIe 5.1 cabling instead of an adapter, which simplifies cable routing and reduces connector clutter.
- Upgrading to a newer GPU in an existing system: the RM750e is commonly used when replacing an older PSU because ATX 3.1 support and modern GPU power cabling make the swap more straightforward for current-generation graphics cards.
- Putting together a cleaner-looking white PC build: builders can connect only the cables they need, which usually makes small or windowed builds easier to manage and leaves less unused wiring behind the motherboard tray.
- Using the PC for long gaming sessions or mixed work-and-play use: owners can expect efficient everyday operation and generally low noise at normal loads, so the power supply is unlikely to be a noticeable source of heat or sound in a balanced system.
- Choosing parts for a first PC build with some upgrade headroom: this model is often recommended as a safer step up from entry-level power supplies, giving enough capacity for a mainstream CPU and single-GPU system without moving straight to a higher-wattage unit.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | ATX 3.1 PC builds that need a 750 W, fully modular, air-cooled power supply with Cybenetics Gold efficiency; style notes PCIe 5.1 compatibility |
| Electrical & Input | 100–240 V AC input (minimum 100 V, maximum 240 V), 47–63 Hz; input current listed as 10A-5A |
| Output & Power | Maximum output 750 W |
| Modular & Connectors | Fully modular PSU; includes a 24_pin_atx (24‑pin ATX) connector, connector type listed as ATX |
| Efficiency & Compliance | Cybenetics Gold efficiency rating; ATX 3.1 compatibility noted (style also references PCIe 5.1) |
| Cooling & Fans | Air cooling with 1 fan |
| Physical Dimensions & Weight | Item dimensions 5.91 L x 5.51 W x 3.35 H inches; item weight 3.3 Pounds; package dimensions 13 L x 18.7 W x 28.8 H centimeters; package weight 2.86 Kilograms |
| Compatibility & Use | Listed compatible device: Monitor; suited for ATX 3.1 systems |
| Package & Contents | Package quantity 1; number of items 1 |
| Model Identifiers | CORSAIR RM750e (RMx Series); part/model number CP-9020292-NA; model name/style RMe (2025) ATX 3.1, PCIe 5.1 |
Reference Q&A
Q: Should I get the Corsair RM750e or RM850e?
A: Choose the RM750e when your build is centered on a mainstream-to-upper-midrange gaming CPU and a single modern GPU, and you want ATX 3.1, PCIe 5.1, and a native 12V-2x6 cable without paying for extra wattage you may not use. Choose the RM850e if you expect a higher-power graphics card, more upgrade headroom, or heavier transient power spikes. The main trade-off is capacity, because both models are positioned similarly by Corsair with the same ATX 3.1 and PCIe 5.1 feature set.
Q: Is the Corsair RM750e worth it over a 650W PSU like the RM650e?
A: The RM750e is the safer pick if you want more flexibility for future GPU upgrades or you are building around a higher-draw graphics card today. A 650W model like the RM650e can still be the better fit for an efficiency-focused or value-focused build with a lower-power CPU and GPU. In practice, the decision is less about features and more about power margin, since Corsair positions both units with the same ATX 3.1, PCIe 5.1, modular design, and native GPU cable support.
Q: Corsair RM750e vs RM750x: which one should I buy?
A: Buy the RM750e if your priority is a lower-cost 750W unit with current ATX 3.1 and PCIe 5.1 readiness for a modern gaming PC. Buy the RM750x if you are willing to spend more for a more premium position in Corsair's lineup, with stronger emphasis on quiet operation, 50°C continuous operation, and higher-end internal component messaging. Review coverage consistently places the RMx family above RMe in refinement, while still treating the RM750e as a solid mainstream option.
Q: Should I choose the Corsair RM750e or RM750x SHIFT?
A: Choose the RM750e if you want a standard PSU layout that will fit more cases without planning around cable access. Choose the RM750x SHIFT if your case supports side-mounted PSU connectors and you specifically want easier cable access and a more premium feature set. The trade-off is compatibility and price: the SHIFT design can improve the building experience, but it depends on case clearance, while the RM750e is the simpler drop-in choice.
Q: Is the newer RM750e a better buy than an older Corsair RM750 or RM750x model?
A: The newer RM750e is usually the better buy when native support for current GPUs matters more than chasing an older, higher-tier design. Its practical advantage is updated ATX 3.1 and PCIe 5.1 support with a native 12V-2x6 cable, which reduces adapter dependence in new builds. Older RM or RM750x models can still make sense if priced well and if you value the reputation of the older premium platform, but for a fresh build the newer RM750e is the more straightforward compatibility-focused choice.
Q: Is the RM750e a good fit for a modern gaming PC with a next-gen GPU power connector?
A: Yes. The RM750e is a strong fit for a modern mid-range to upper-mid-range gaming build because it is ATX 3.1 / PCIe 5.1 compliant and includes a native 12V-2x6 cable, so it can power newer GPUs without relying on a separate adapter. It makes the most sense for builders who want current connector support, cleaner cabling, and a 750W capacity that suits many single-GPU systems.
Q: Is 750W enough, or should I move up to an 850W power supply?
A: Choose the RM750e if your build is a typical single-GPU gaming or productivity PC and your total power needs stay comfortably below the unit's 750W capacity. Move to 850W if you want more headroom for higher-end GPUs, heavier transient loads, or future upgrades. The main trade-off is value versus upgrade margin: 750W is usually enough for mainstream builds, while 850W is safer for more demanding parts.
Q: Will this power supply fit most standard ATX cases?
A: Usually yes. The RM750e uses a compact 140mm-long housing, which is shorter than many bulkier high-wattage PSUs and makes it easier to fit in standard ATX cases, especially when space is tight near drive cages or cable-routing areas. It is still best to confirm your case's PSU clearance, but this model is easier to place than oversized units.
Q: Is the RM750e a good choice if I want a quiet, clean build?
A: Yes, if low noise and simple cable management matter to you. The RM750e is fully modular, so you only install the cables you need, and it supports Zero RPM mode at lower loads. Its Cybenetics Gold efficiency and A noise rating also indicate it is designed for efficient, lower-noise operation rather than just raw wattage.
Q: Who is the RM750e best for, and who should skip it?
A: The RM750e is best for builders who want a current-standard 750W PSU for a single-GPU gaming, creator, or general-purpose PC, especially if they value native 12V-2x6 support and fully modular cabling. It is less ideal for buyers planning very high-end GPUs, unusually power-hungry CPUs, or aggressive future upgrades, because an 850W or higher unit gives more long-term headroom.
Q: Is the CORSAIR RM750e a good fit for a modern mid-to-high-end gaming PC?
A: Yes. The RM750e is a sensible fit for many modern gaming builds because it provides 750W, full modular cabling, and ATX 3.1 / PCIe 5.1 support. It is most suitable for mainstream to upper-midrange systems where you want current connector support and a cleaner build, without stepping up to a higher-wattage unit.
Q: Is 750W enough if I plan to pair the RM750e with an RTX 4070 Ti or RTX 4080-class GPU?
A: Usually, yes. Repeated Reddit discussions around the RM750e treat 750W as sufficient for RTX 4070 Ti and many RTX 4080-class builds, especially when the rest of the system is not unusually power-hungry. If you expect a very high-power CPU, heavy overclocking, or want extra upgrade headroom, moving to 850W is the safer trade-off.
Q: Who is the RM750e best suited for?
A: It is best suited for PC builders who want a current-standard ATX power supply for a new build or a PSU upgrade, especially if they value full modular cables and native support for newer GPUs. It makes the most sense for single-GPU gaming or general-purpose desktop systems rather than extreme, maximum-headroom builds.
Q: What are the main trade-offs of choosing the RM750e instead of a higher-end or higher-wattage PSU?
A: The main trade-off is headroom. The RM750e covers many current builds well, but an 850W or more premium unit can be a better choice if you want more margin for future GPU upgrades, very high-power CPUs, or heavier tuning. The RM750e is the better value-oriented choice when 750W is already enough for your planned system.