Lian Li RB0550 – 550W 80+ Bronze PSU – PCIe Gen 5.1 12+4pin – Intel ATX 3.1 – 135mm low-noise fan

PSU RB SERIES
Enjoy a cleaner build and more space for storage.
The RB Series' built-in cable management helps you maximize space without clutter.

RELIABLE PERFORMANCE, DAILY SAVINGS
With 80 PLUS Bronze certification, the RB series offers power conversion efficiency up to 85%. It reduces heat and power consumption, making it an ideal and cost-effective solution for everyday systems.

SILENT COOLING, STABLE OPERATION
Equipped with a 135mm HYB intelligent temperature-controlled fan, larger than the standard 120mm fan, the PSU delivers superior cooling performance even at lower fan speeds. This design not only improves heat dissipation, but also helps reduce noise levels, ensuring efficient, quiet cooling for everyday tasks and stable operation under heavy workloads.

HIGH QUALITY CAPACITORS 105°C
Built with high-quality 105°C capacitors, a powerful unipolar high-current +12V and reliable DC-to-DC architecture, this PSU delivers stable and consistent power output. These high-quality components are the foundation of stability, reducing voltage fluctuations and noise to ensure smooth performance, extended component life and reliable operation even under continuous operation at temperatures up to 40°C.

SMART CABLE MANAGEMENT
The RB series features a built-in deep routing channel and Velcro straps on three sides of the PSU housing to keep cables firmly in place. Unnecessary cables can be easily stored, while thick CPU and GPU power cables remain neatly organized. This improves airflow, reduces clutter, and results in a cleaner, more professional build.

UNIQUE TRIPLE-SIDED CABLE ROUTING AND COLLECTION
Designed to perfectly match rear connectors and compact cases, the RB series features essential cables such as CPU (4+4 pin), main power (20+4 pin) and SATA/peripheral connectors, which are secured with Velcro strips on three sides of the PSU housing. This smart cable management design not only allows for clean and efficient cable routing, but also frees up valuable space inside the case, resulting in a tidier and more professional build.

BUILT TO THE LATEST ATX 3.1 STANDARD
Fully compliant with the latest ATX 3.1 standard, this PSU supports next-generation hardware requirements with native 12V-2x6 PCIe slots for improved security and power delivery. Designed to handle high transient loads with greater efficiency, it's ready for the most demanding GPUs and future upgrades.

COMPACT SIZE FOR HIGH COMPATIBILITY
With a compact 150mm depth, the RB series fits easily into most ATX cases, making it a great choice for space-constrained or minimalist builds without compromising on power.

5 YEAR WARRANTY
LIAN LI provides a 5-year warranty, offering long-term security and peace of mind for your system.