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Lian Li - RB550 80 Plus Bronze Non Modular - Low-Noise ATX 550 Watt Power Supply - 135mm Larger Fan - Active PFC Design(RB0550B) - Black

Model: RB0550B
SKU: 12024036

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Specifications
  • Wattage
    550 watts
    Modular
    Non-modular
    Energy Efficiency
    80 PLUS Bronze
    ATX Connector
    1
    PCIe Connector
    1
    SATA Connector
    1
  • Key Specs
    • Wattage: 550 watts (Measurement of electrical power.)
    • Modular: Non-modular
    • Energy Efficiency: 80 PLUS Bronze (Computer and server power supplies with the 80 PLUS certification are tested for operating efficiency at 10, 20, 50, and 100% of rated load. If a product tests at least 80% efficient, it qualifies for the base level 80 PLUS certification. Bronze, Silver, Gold, Platinum, and Titanium level certifications are given to products with even higher efficiency ratings.)
    • ATX Connector: 1 (The configuration of the connector as it connects a computer power supply unit to an ATX motherboard.)
    • PCIe Connector: 1 (The configuration of the connector as it connects a computer power supply unit to a PCIe (Peripheral Component Interconnect Express) motherboard interface.)
    • SATA Connector: 1 (The configuration of the connector as it connects a computer power supply unit to a SATA-based drive.)
    • EPS12V Connector: 1 (The configuration of the connector as it connects a computer power supply unit to a EPS12V motherboard interface.)
    • PCI Express Version: PCI Express 5.1
    • Form Factor: ATX (The size, arrangement, and physical configuration of the product.)
    • Product Length: 150 millimeters (The out of box length of the item. Length is measured as the longest dimension of the item.)
  • General
    • Brand: Lian Li
    • Model Number: RB0550B
    • Product Name: RB550 80 Plus Bronze Non Modular - Low-Noise ATX 550 Watt Power Supply - 135mm Larger Fan - Active PFC Design(RB0550B)
    • Color: Black
  • Power
    • Wattage: 550 watts (Measurement of electrical power.)
    • Modular: Non-modular
    • Energy Efficiency: 80 PLUS Bronze (Computer and server power supplies with the 80 PLUS certification are tested for operating efficiency at 10, 20, 50, and 100% of rated load. If a product tests at least 80% efficient, it qualifies for the base level 80 PLUS certification. Bronze, Silver, Gold, Platinum, and Titanium level certifications are given to products with even higher efficiency ratings.)
    • Power Cord Included: true (Connects your product to an electrical outlet, allowing for immediate use (provided that other installation requirements are met).)
  • Connectivity
    • ATX Connector: 1 (The configuration of the connector as it connects a computer power supply unit to an ATX motherboard.)
    • PCIe Connector: 1 (The configuration of the connector as it connects a computer power supply unit to a PCIe (Peripheral Component Interconnect Express) motherboard interface.)
    • SATA Connector: 1 (The configuration of the connector as it connects a computer power supply unit to a SATA-based drive.)
    • EPS12V Connector: 1 (The configuration of the connector as it connects a computer power supply unit to a EPS12V motherboard interface.)
    • PCI Express Version: PCI Express 5.1
    • Form Factor: ATX (The size, arrangement, and physical configuration of the product.)
  • Dimensions
    • Product Height: 150 millimeters (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 86 millimeters (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Length: 150 millimeters (The out of box length of the item. Length is measured as the longest dimension of the item.)
    • Product Weight: 81.12 ounces (The out of box weight of the item.)
  • Warranty
    • Warranty - Parts: 5 years
  • Other
    • UPC: 840353050075

Compact 150 mm ATX size for wide case compatibility. 80 PLUS Bronze certified with up to 85% efficiency for everyday systems. ATX 3.1 ready with native 12V-2×6 connector for next-gen GPU support. A Built-in cable routing channel with Velcro straps for neat management. Three-sided cable exits designed for back-connector motherboards. 135 mm HYB smart temperature-controlled fan for quiet cooling. Six protection mechanisms including OVP, UVP, OCP, OPP, OTP, SCP. Includes full cable set for CPU, GPU, SATA, and PATA connections.

  • 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-conscious or minimalist builds without compromising on power.
  • BUILT FOR THE LATEST ATX 3.1 STANDARD: Fully compliant with the latest ATX 3.1 standard, this PSU supports next-gen hardware demands with native 12V-2×6 PCIe connectors for improved safety and power delivery. Engineered to handle high transient loads with greater efficiency, it’s ready for the most demanding GPUs and future upgrades.
  • 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 securely in place. Excess cables can be easily tucked away, while thick CPU and GPU power lines stay neatly organized. This improves airflow, reduces clutter, and results in a cleaner and more professional build.
  • UNIQUE THREE-SIDED CABLE ROUTING AND BUNDLING: Designed to perfectly accommodate back connectors and compact cases, the RB Series features key cables such as the CPU (4+4 pin), main power (20+4 pin), and SATA/peripheral connectors neatly secured with Velcro straps on three sides of the PSU housing.
  • MODULAR FOR PERIPHERALS: To maintain a clutter-free build, modular SATA and peripheral cables let users connect only what they need. These cables are neatly routed through a dedicated grooved channel and secured with built-in Velcro straps on the PSU housing, improving airflow and maintaining a clean, professional look.
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Pros for Lian Li - RB550 80 Plus Bronze Non Modular - Low-Noise ATX 550 Watt Power Supply - 135mm Larger Fan - Active PFC Design(RB0550B) - Black
There were no pros for this productThere were no pros for this productOverall Performance, Noise Level, Power Capacity, Installation Ease, Fan ControlOverall Performance, Noise Level, Power Supply, Price, Ease of use
Cons for Lian Li - RB550 80 Plus Bronze Non Modular - Low-Noise ATX 550 Watt Power Supply - 135mm Larger Fan - Active PFC Design(RB0550B) - Black
There were no cons for this productThere were no cons for this productCoil WhineModular, Cable Management

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