







⚡ Power your ambition with silent, efficient, and modular precision.
The CORSAIR RM550x is a fully modular 550W ATX power supply featuring 80 Plus Gold efficiency, a 135mm magnetic levitation fan for ultra-quiet operation, and premium Japanese capacitors rated at 105°C for exceptional durability. Designed for modern systems with EPS12V connectors, it supports fast wake-from-sleep modes and comes backed by a 10-year warranty, making it a reliable choice for professionals and enthusiasts seeking clean builds and stable power delivery.







| ASIN | B08R4WJR15 |
| Best Sellers Rank | #4 in Computer Power Supplies |
| Brand | Corsair |
| Compatible Devices | Personal Computer |
| Connector Type | EPS |
| Connector Type Used on Cable | EPS |
| Cooling Method | Air |
| Customer Reviews | 4.7 out of 5 stars 11,280 Reviews |
| Fan Size | 135 Millimeters |
| Form Factor | ATX |
| Item Dimensions | 6.3 x 5.91 x 3.39 inches |
| Item Weight | 1.5 Kilograms |
| Manufacturer | Corsair |
| Maximum Input Voltage | 127 Volts (AC) |
| Minimum Input Voltage | 115 Volts |
| Model Name | RM550X |
| Number of Fans | 1 |
| Output Wattage | 550 Watts |
| Power Supply Design | Full Modular |
| System Bus Connector Type | EPS |
| UPC | 840006603818 |
| Warranty Description | 10 year manufacturer |
| Wattage | 550 watts |
S**N
Reliable Power Delivery with Efficiency and Modular Design!
The Corsair RMX Series (2021) RM750x is a 750 Watt power supply that exemplifies reliability, efficiency, and modular design. This power supply unit (PSU) has surpassed my expectations, providing stable and consistent power delivery while offering a convenient and tidy cable management solution. The standout feature of the Corsair RM750x is its robust 750 Watt power output. This wattage is more than enough to handle high-end gaming rigs and power-hungry components, ensuring that my system gets the required power for peak performance. With an 80 Plus Gold certification, the RM750x guarantees high energy efficiency, reducing power wastage and lowering electricity bills. Its power efficiency also translates into less heat generation, leading to quieter operation and improved system longevity. The fully modular design of the RM750x is a game-changer for cable management. It allows me to connect only the necessary cables, minimizing clutter and maximizing airflow inside my PC case. This results in a clean and organized build with improved cooling capabilities. The PSU's zero RPM fan mode ensures silent operation during low to medium loads, as the fan only spins up when required, keeping noise levels at a minimum, even during intense gaming sessions. The RM750x comes equipped with high-quality Japanese capacitors, ensuring exceptional reliability and stability. These capacitors contribute to the PSU's long lifespan and consistent performance. Corsair is a reputable brand known for its high-quality PC components, and the RMX Series continues that tradition. The RM750x is a testament to Corsair's commitment to providing top-tier power supplies for enthusiasts and professionals. In conclusion, the Corsair RMX Series (2021) RM750x is a reliable and efficient power supply unit that offers stable power delivery and a modular design for easy cable management. Its 750 Watt power output, 80 Plus Gold certification, and silent operation make it the ideal choice for powering high-performance gaming systems. If you're looking for a premium power supply with excellent efficiency and clean cable management, the Corsair RM750x is the perfect option. I highly recommend this PSU for its outstanding performance and the peace of mind it brings to my PC build!
K**.
Trustworthy PSU
Really well made product. Just for a good set up. I paired it with a i7 13700k and a 4070 super with around 8th fans. Works really good with no issues. It is quiet and will allow an upgrade for a 5080 or something like that. Really good one
J**C
Excellent PSU
Clean, efficient, and easy to use. Running my 10850k, 4070, and all the other crap shoved in my tower with zero issues. Modularity is excellent for keeping your system from being a spaghetti mess by only using the cables you need. Included molex cable is excellent if your still using some older hardware or fan hubs. You get what you pay for and corsair is worth the cost to keep your system running stable.
D**H
Plenty of power, good power supply
Great power supply, suits all my needs for a decent price. Being fully modular, it's pretty easy to setup.
J**A
Great PSU
Had to RMA a Seasonic Focus PSU because I now know that it couldn't handle the transient spikes of my 9070xt. Frequent driver crashes, resets. Thought it was my GPU. Decided to go back to Corsair as my previous PSU from this brand never failed me and I couldn't be happier. Any issue I previously had has completely disappeared with the 2024 model of the RM1000x. Really appreciate the 4 PCIe cables, as I already needed one for the iCue link hub and it still leaves room for a future upgrade.
L**A
Quiet, reliable PSU with plenty of power
Very solid power supply. I’m using it with a high-end CPU 14900K and RTX 5070 Ti and it runs perfectly stable, even under full load. The unit is very quiet, the fan rarely spins up and there is no coil whine. Being fully modular makes cable management much easier and the included cables are long enough for a big case. Great choice if you want a reliable PSU with plenty of headroom for future upgrades.
R**!
Reliable and Efficient Power Supply for Any Build!
I recently upgraded to the CORSAIR RM750x fully modular ATX power supply, and I couldn't be happier with my choice! This 750W unit not only boasts an impressive 80 PLUS Gold certification for high efficiency but also operates quietly, thanks to its low-noise fan. The Zero RPM mode is a fantastic feature—my system runs silently during light loads, which is a major plus for a quiet workspace. The fully modular design makes cable management a breeze. I appreciate being able to connect only the cables I need, which helps keep my build neat and organized. The quality of the cables is excellent, and they feel durable and well-made. Installation was straightforward, and the RM750x has handled everything I've thrown at it without a hitch. Whether I’m gaming, video editing, or just browsing, I have confidence that my components are getting the power they need. Overall, the CORSAIR RM750x is a top-tier power supply that combines efficiency, quiet operation, and ease of use. I highly recommend it to anyone looking to build or upgrade their system!
H**R
Ill be back!
Best in class! The utilization of Japanese capacitors over the Taiwanese capacitors in the 1000 RMe is what pushed me to the RMx -however, I think as a whole, corsairs build quality is best-in-class. every cable feels hefty and well made, the fasteners lock in securely, with an audible click to ease your mind. Ill be a corsair customer for life after this psu!
Trustpilot
1 month ago
3 weeks ago