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The world of PC hardware has seen a surge in RGB lighting, adorning everything from keyboards and mice to RAM and graphics cards. Yet, power supplies have remained relatively untouched by this trend. Corsair, a leading name in PC components, aims to change this with the CX-F RGB series, specifically the CX550F RGB model, promising a vibrant upgrade for mid-range gaming PCs.

Corsair CX550F RGB ATX Power Supply

Design and Build Quality

Unlike previous CX series PSUs, the CX550F RGB boasts a more premium design, reminiscent of Corsair’s higher-end AX, HX, and RM lines. Its robust construction and beveled edges contribute to a feeling of durability and quality, surpassing the typical boxy design of budget-oriented power supplies.

Corsair CX550F RGB ATX Power Supply inside a PC Case

The casing feels remarkably solid, perhaps more so than strictly necessary given its protected placement within a PC case. However, this reinforces the perception of a high-quality product, distancing it from the budget-friendly image typically associated with the CX series.

Unique Cooling Approach

A notable design choice is the upward-facing fan, drawing air from inside the case and exhausting it out the back. This setup showcases the RGB-lit fan, a central feature of this power supply.

Corsair CX550F RGB ATX Power Supply with Upward-Facing Fan

However, this placement also poses a potential challenge. Situated directly below the graphics card, the fan might be affected by the heat generated during intensive gaming sessions, potentially reducing cooling efficiency. This necessitates a well-ventilated PC case to ensure optimal airflow.

Connectivity and Control

The rear of the unit features the standard power input alongside a dedicated RGB on/off switch. This thoughtful addition indicates a separate circuit for the RGB lighting, independent of the fan control.

Corsair CX550F RGB ATX Power Supply Rear View

The front panel offers a comprehensive array of connectors, including four 8-pin PCIe connectors for CPU and graphics cards, two motherboard connectors, and three SATA power connectors.

Corsair CX550F RGB ATX Power Supply Front Panel Connectors

RGB Integration and Software

The CX-F series stands out with its RGB In connector, enabling synchronization with a CORSAIR iCUE Lighting Node CORE (sold separately) or a motherboard’s ARGB header. This allows for seamless integration with other RGB components within the system, controlled through Corsair’s iCUE software. This creates a cohesive and customizable lighting experience. Pairing this PSU with a compatible case like the Corsair 4000X RGB further simplifies RGB control.

Corsair 4000X RGB Mid Tower Gaming Case

Internal Components and Performance

While disassembly was not possible for this review, the fan appears to be a customized version of the Corsair SP120 Pro 120mm, capable of reaching 1400 RPM and featuring eight high-quality RGB LEDs. Reports suggest that the internal components are manufactured by HEC, a reputable supplier known for reliable mid-range power supplies. The CX550F RGB incorporates modern technologies like Single Rail 12V, Active PFC, and LLC resonant converter, built with quality components to Corsair’s specifications.

Corsair CX550F RGB ATX Power Supply Cables

Testing with a system comprising an Intel Core i7 8700 and a Gigabyte RX 5500 XT Gaming OC 8G, the power supply performed flawlessly during extended gaming sessions with demanding titles like Horizon Zero Dawn PC. The RGB lighting delivered impressive brightness and vibrancy thanks to its eight LEDs. However, due to the upward-facing fan design, choosing a case with a dedicated PSU cutout is crucial for showcasing the RGB effects.

Corsair CX550F RGB ATX Power Supply Internal View

Conclusion

The Corsair CX550F RGB represents a significant departure from previous CX series power supplies. Its robust design, integrated RGB lighting, and iCUE compatibility make it an attractive option for mid-range PC builders seeking a touch of personalized flair. While the upward-facing fan necessitates a compatible case, the overall performance and aesthetic upgrade make it a worthwhile consideration for gamers and enthusiasts alike.