CORSAIR 75-003442 Modular Atx Power Supply Psu RM550X

( Brand: Corsair ), ( Manufacturer Part Number: 75-003442 ), ( Model: RM550X ), ( Connectors: 4 4 Cpu, 20 Pin, 4 Pin Peripheral, 24 Pin, 20 4 Pin ), ( Form Factor: Eps ), ( Type: Power Module ), ( Maximum Power: 550 W ), ( Cooling: 1 Fan )

Review CORSAIR Modular Atx Computer Power Supply Psu 550 Watt Plus Gold

The Corsair RM550x is a high-performance, 550-watt modular ATX power supply designed for PC builders seeking exceptional efficiency, quiet operation, and reliable power delivery. This 80 Gold certified unit delivers up to 90% efficiency under typical loads, ensuring minimal power waste and reduced environmental impact.

The RM550x employs a fully modular design, allowing users to configure their systems with only the cables they require. This not only reduces clutter inside the case but also enables optimal airflow and cooling. Each cable is individually sleeved with a black, flat ribbon design for a clean and professional look.

Corsair's Zero RPM fan technology is another standout feature of the RM550x. This fan only spins up when necessary, allowing for near-silent operation under typical loads. The fan's hydraulic dynamic bearings ensure long-lasting performance and minimal wear.

The RM550x is equipped with a single 12V rail that can deliver up to 45A, providing ample power for modern components. It also features over-voltage, over-current, and short-circuit protection, ensuring the safety of your system and components.

This power supply is compatible with both ATX and EPS12V form factors and comes with a 7-year warranty for added peace of mind. The Corsair RM550x is a reliable and efficient choice for any PC build, offering a balance of power, performance, and quiet operation.

The Corsair RM550x is a high-performance, 550-watt modular ATX power supply unit (PSU). Here are some pros and cons that can help you make an informed decision about purchasing this PSU:

1. High Efficiency: The RM550x has an 80 Gold certification, which means it operates at up to 90% efficiency under normal loads, reducing energy waste and saving money on electricity bills.

2. Quiet Operation: This PSU utilizes a hydraulic dynamic fan that runs at low RPMs under normal conditions, ensuring quiet operation.

3. Modular Design: The RM550x features a fully modular design, allowing users to only connect the cables they need, reducing clutter and improving airflow within the case.

4. High-Quality Components: It uses Japanese capacitors, which are known for their reliability and long lifespan. This ensures consistent power delivery and stability.

5. Overvoltage Protection: The PSU includes protection against overvoltage, undervoltage, overcurrent, and short-circuit conditions.

1. Price: The RM550x is a premium PSU and comes with a higher price tag compared to other 550-watt options.

2. Limited Connectors: While the modular design is a pro, some users might find that there are not enough connectors for their specific build, requiring additional adapters.

3. Size: The RM550x is a bit larger than some other 550-watt PSUs, which might make it difficult to fit in some smaller cases.

The Corsair RM550x is a high-quality, high-performance power supply unit with a modular design, quiet operation, and efficient power delivery. While it comes with a higher price tag, the long-term benefits, such as reliability and energy savings, might make it a worthwhile investment for those looking for a premium PSU.

If you're building a mid-range to high-end system and are looking for a reliable, efficient, and quiet PSU, the Corsair RM550x is a solid choice. It offers excellent power delivery, high efficiency, and the modular design makes it easy to manage cable clutter within the case. However, if you're on a tight budget, there are other options available that might better suit your needs.

Details:

Used, works great. Shows obvious signs of use, has some cosmetic scuffs, scratches.

part #: 75003442 prices

• $11.69-$41.99

specifications powsuppy:

• brand: Corsair
• mpn: 75-003442
• model: Rm550x
• connectors: 4 4 Cpu, 20 Pin, 4 Pin Peripheral, 24 Pin, 20 4 Pin
• form factor: Eps
• type: Power Module
• maximum power: 550 W
• cooling: 1 Fan

offer powsuppy:

• availability: In Stock
• started: July 29, 2025
• quantity: 1
• options: Ship-to-home
• sold: 0

general powsuppy:

• Computers/Tablet's Networking > Computer Components Parts > Power Supplies
• condition: Used

payments powsuppy:

• wallet: Apple-pay
• credit card: Diners-club
• other

returns powsuppy:

• policy: Returns Accepted
• method: Money back
• time: 30 Days
• paid by: Buyer

seller powsuppy:

• # reviews: 306
• rating: 100.0%
• city: Minneapolis, Minnesota

shipping powsuppy:

• class: Expedited, Standard
• service: USPS Priority Mail, USPS Ground Advantage, UPS Ground
• carrier: USPS, UPS
• type: Calculated
• cost: $11.60
• transit: 3-7 Days

Corsair 75-003442 Is Similar To:

• Corsair Cx-600m 600w Power Supply (43.7% similar) Peripheral and satay cables in addition to the primary. Your choice of USPS ground advantage or priority. Corsair CX600M 600 watt bronze level power supply. Pulled from a working computer. Corsair quality. Item condition from above, for your convenience: excellent. I don't see any dust...(May 16th, 2024)
• Corsair Cp-9020209 Cv Series Cv450 450watt 80 Plus Bronze Certified Psu 75-004197 (41.2% similar) The power supply is constructed with a black atx form factor and includes floppy drive, 20-PIN, 4 cpu, 4-PIN peripheral, 8-PIN 12V, 24-PIN, 6/2 pin pic express, satay i, 20 connectors. Excellent used condition. It is a 450W unit that certified with 80 plus bronze and manufactured in Taiwan...(May 17th, 2024)
• Evga Corsair 1300w850w Various 1000w 1300w-850w Semi-modular modular Desktop Power Supplies Lot Of 4 (39.8% similar) 1- 1000 w power supply. Comes with only two power cables for 1000 1300 w supply. All working perfectly fine. 1/1 300 w power supply. 2/8 50 w power supply. All other cable are come with each supply see pics...(May 17th, 2024)
• Corsair Cp-9020188 Rm Series White Rm850 850 Watt 80 Plus Gold Certified Rps0110 (47% similar) Fully modular, so you only connect the cables your system needs. Used Corsair rm series 2021 , white, RM850, 850 watt, 80 plus gold certified, fully modular power supply. Item has some scratches and scuffs as pictured, primarily from being shipped outside of packaging. Zero rpm fan mode for...(May 18th, 2024)
• Corsair Cp-9020201-na Rm1000x 1000w 80gold Fully Modular Atx Power Supply Black Read (54.7% similar) Its come with only power cable. Only 1 item RM1000X for each price its work like a dream no problem at all...(May 18th, 2024)
• Corsair Cmpsu750tx Tx750w Power Supply Model Cmpsu-750tx Tested And Working (43.5% similar) This model, Corsair TX750W, has been tested and confirmed to be working perfectly. The cooling system includes one fan to keep your running smoothly. Tested and working. With a maximum power output of 750 w, it can handle even the most demanding components. The power supply is designed...(May 19th, 2024)
• Corsair Cx550m Cx Series 550w Desktop Power Supply With Cables Tested Works (44.7% similar) See pictures. Corsair CZ series CX550M 550W semi modular cpu desktop power supply with cables tested works...(May 20th, 2024)
• Corsair Gs700 75-001182 700w Gaming Power Supply (47.8% similar) Included accessories - only whats pictured. No accessories included. Featuring a single fan for cooling and brand name you can trust, the Corsair GS700 is great choice games who demand best. Office hours: our office hours are from 9:00 am to 5:00 pm central standard time. Any computer...(May 20th, 2024)
• Corsair Rm850x Atx Power Supply 850w Barely Used (55.9% similar) I originally bought it from best buy and its in like new condition. I used it in my old desktop for less than a year to infrequently play rocket league. For sale is a very lightly used desktop power supply...(May 20th, 2024)
• Corsair Cp-9020199-na Rm750x Series 80 Gold Fully Modular Power Supply Black No (52.1% similar) Corsair RM750X series 80 gold fully modular power supply black no power supply does not power on was unable to a tester no cables psu only...(May 20th, 2024)
• Corsair Cp-9020222-na Cx-m Series Cx750m 80 Bronze 750w Semi Modular Atx Power Supply (46.8% similar) The package comes with everything seen in the photos. The psu is in overall good condition but may show some scratches and signs of use please see pictures. Tested and fully functional. The psu comes with 1 power; non-modular: cpu and atx please see pictures...(May 21st, 2024)