CORSAIR RM750x Shift Fully Modular ATX Power Supply - Modular Side Interface - ATX 3.1 & PCIe 5.1 Compliant - Zero RPM Fan Mode - 105°C-Rated Capacitors - 80 Plus Gold Efficiency - Black
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AI Verdict
This 750-watt, 80 Plus Gold, ATX 3.1 PSU with side-mounted modular connections is for PC builders prioritizing cable management in cases with adequate side clearance.
This 750-watt ATX 3.1 PSU offers advanced features like side-mounted modular connections and PCIe 5.1 compliance, which are highly beneficial for modern builds and cable management. However, its unique side interface demands specific case clearance, making it a less universal fit than traditional PSUs.
If your case lacks side clearance, look for a fully modular ATX 3.1 PSU with traditional rear-facing connectors.
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Pros
- Side-mounted modular interface simplifies cable routing and management, making connections easier to reach.
- ATX 3.1 and PCIe 5.1 compliant, supporting modern GPUs and resisting transient power spikes.
- 100% 105°C-rated Japanese electrolytic capacitors contribute to long-term power delivery.
- Zero RPM fan mode ensures silent operation at low loads.
- Fully modular Type 5 Gen 1 micro-fit cables reduce cable clutter.
- 140mm fluid dynamic bearing fan provides cooling with low noise.
Cons
- Side-mounted connectors can interfere with case side panels or drive cages in chassis with limited clearance, requiring at least 3cm of space.
- Included cables can be stiff, making routing challenging, especially the 12VHPWR cable.
- The 160mm depth of the PSU is longer than some 750W units, potentially limiting compatibility in smaller cases.
- Some users report the 12VHPWR cable being too short for specific GPU placements in top-mounted PSU configurations.
Dimension Scores
The 80 Plus Gold certification and ATX 3.1 compliance ensure up to 90% efficiency and stable power delivery for modern components.
The 140mm fluid dynamic bearing fan with Zero RPM mode keeps the PSU virtually silent under low to medium loads.
It utilizes 100% 105°C-rated Japanese electrolytic capacitors, contributing to long-term reliability and stable power.
The innovative side-mounted modular interface and micro-fit cables significantly simplify cable routing and reduce clutter, provided there is adequate case clearance.
Best For
- PC builds in cases with at least 3cm of side clearance for cable routing.
- Systems utilizing modern ATX 3.1 and PCIe 5.1 GPUs, like NVIDIA RTX 40 series.
- Enthusiasts seeking a clean aesthetic with minimal visible cables due to the side interface.
- Users prioritizing long-term component reliability with 105°C-rated capacitors.
Not Recommended For
- Compact ITX cases or cases with limited side panel clearance for PSU cables.
- Budget builds where the premium for ATX 3.1 and side modularity isn't a priority.
- Users who prefer traditional rear-facing PSU cable connections or have cases not designed for side-exit cables.
Watch Out For
- The side connectors made it impossible to close my case side panel because the cables stuck out too far, needing at least 3cm of clearance.
- Cable stiffness, especially with the 12VHPWR cable, made routing difficult and required significant bending from the side.
- Had to remove a drive cage in my case to make room for the side-mounted cables, which wasn't ideal for storage.
- The included 12VHPWR cable was too short for my GPU in a top-mounted PSU configuration, barely reaching the connector.
Full Specifications
| ASIN | B0C61XRJBG |
| Brand | Corsair |
| Color | Black |
| Series | RM750x SHIFT |
| Wattage | 750 watts |
| Model Name | RM750x SHIFT |
| Form Factor | ATX |
| Item Weight | 2.5 pounds |
| Manufacturer | Corsair |
| Connector Type | ATX, EPS |
| Cooling Method | Air |
| Output Wattage | 750 |
| Item model number | CP-9020251-NA |
| Compatible Devices | Personal Computer |
| Product Dimensions | 6.3 x 5.91 x 5.08 inches |
| Item Dimensions LxWxH | 6.3 x 5.91 x 5.08 inches |
| Item dimensions L x W x H | 6.3 x 5.91 x 5.08 inches |
What Buyers Say
The most surprising finding is how polarizing the side-mounted cable interface is; while some users find it revolutionary for cable management, others encounter significant compatibility issues with their cases, requiring at least 3cm of side clearance. Many appreciate the ATX 3.1 compliance and the inclusion of the 12VHPWR cable for modern GPUs. The PSU's quiet operation due to its Zero RPM fan mode is a frequently mentioned positive, but the stiffness of the included cables, particularly the 12VHPWR, can make routing difficult.
“Dude, the side plugs are either a godsend or a nightmare depending on your case, I almost couldn't close my side panel but once it was in, cable management was actually pretty sweet.”
Common Praise
- Side-mounted connectors make plugging in cables significantly easier than traditional rear connections.
- ATX 3.1 and PCIe 5.1 compliance provides peace of mind for current and future GPU compatibility.
- The Zero RPM fan mode keeps the system quiet during light use.
- Fully modular design allows for a cleaner build with only necessary cables.
- Includes the 12VHPWR cable for NVIDIA RTX 40 series GPUs.
Common Complaints
- Side-mounted cables can prevent case side panels from closing due to insufficient clearance.
- Cables, especially the 12VHPWR, are stiff and difficult to bend, complicating routing.
- The 160mm depth can be an issue for some smaller or older cases.
- The 12VHPWR cable can be too short for certain GPU and PSU mounting configurations.
Ownership Tips
- The side-mounted cables require careful planning of case layout to ensure proper clearance.
- The included Type 5 Gen 1 micro-fit cables are indeed smaller, but their stiffness can counteract the space-saving benefit.
- The Zero RPM fan mode works as advertised, keeping the PSU silent until under significant load.
- The 12VHPWR cable, while included, might need an aftermarket extension or a different routing strategy in some builds due to its length and rigidity.
Frequently Asked Questions
Is this PSU compatible with older graphics cards?
Yes, the CORSAIR RM750x Shift is compatible with older graphics cards, as it includes standard PCIe connectors in addition to the 12V-2x6 GPU cable for modern cards.
What is the benefit of the side-mounted connectors?
The side-mounted connectors allow for easier access and cleaner cable management by routing cables directly from the side of the PSU, reducing clutter behind the motherboard tray.
Does it come with a 12VHPWR cable for RTX 40-series GPUs?
Yes, it includes a PCIe 5.1 12V-2x6 GPU cable for use with modern graphics cards such as the NVIDIA GeForce RTX 40 Series.
How quiet is the fan?
The 140mm fluid dynamic bearing fan features a Zero RPM mode, meaning it remains virtually silent under low and medium loads, only spinning up when higher cooling is required.
What does "80 Plus Gold Efficiency" mean?
80 Plus Gold Efficiency indicates that the power supply operates at up to 90% efficiency at typical loads, converting more power into usable electricity and generating less waste heat.
Is it truly fully modular?
Yes, the CORSAIR RM750x Shift is fully modular, meaning you only connect the cables your system needs, which helps reduce clutter and improve airflow.
Buying Guide
When picking a power supply, you're looking for stable power delivery for your components, especially your GPU. The wattage needs to match your system's power draw, with some headroom. Efficiency ratings like 80 Plus Gold tell you how much power is wasted as heat, impacting your electricity bill and system temperature. Modular cables let you only plug in what you need, making your build cleaner and improving airflow.
Wattage (750 watts)
This is the total power your PSU can supply. Think of it like the horsepower of a car; you need enough to run all your components smoothly, especially power-hungry graphics cards and CPUs, without straining the unit.
80 Plus Gold Efficiency
This certification means the PSU converts at least 87-90% of the AC power from your wall into usable DC power for your PC, similar to how a fuel-efficient car wastes less gas. Higher efficiency means less heat generated and lower electricity bills.
ATX 3.1 & PCIe 5.1 Compliant
This is crucial for modern systems, especially with the latest GPUs. It means the PSU can handle rapid power spikes (transients) from high-end graphics cards without shutting down, like a robust electrical system in a house that can handle multiple appliances turning on at once.
Fully Modular
This refers to the cables. A fully modular PSU lets you detach every cable you don't need, like having custom-length cables for your car's engine. This significantly cleans up your PC's interior, improves airflow, and makes building much easier.
Alternatives
If the side-mounted cables are a deal-breaker for your case, look for an ATX 3.1, 80 Plus Gold, fully modular PSU with traditional rear-facing cable connections and a standard 140mm depth.
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