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EVGA 550w B3 PSU 80+ Bronze Fully Modular Power Supply

  • 3x Molex Connectors
  • 6x SATA Connectors
  • 2x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
  • ATX Form Factor

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QuickFind: 791241

Mfr part code: 220-B3-0550-V3

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    EVGA 550w B3 PSU 80+ Bronze Fully Modular Power Supply Product Description

    Product Overview

    EVGA Bronze power supplies have become synonymous with industry-leading stability, performance, and value. With the B3 power supplies, EVGA now adds fully modular cables, the ECO Intelligent Thermal Control System, even tighter voltage regulation (<2%), and a Long Life Sleeve Bearing Fan for ultra-quiet performance with an increased lifespan. Even more impressive, these power supplies continue to get shorter compared to its predecessors. Backed by EVGA's 5 Year Global Warranty, the EVGA B3 lineup will give you peace of mind for years to come.

    Join the evolution of the Bronze age.
    No, it's not magic. Despite adding more features and increased performance, the EVGA B3 lineup is shorter than most of its competitors. At only 150mm long (450B3, 550B3, 650B3) and 160mm long (750B3, 850B3), you'll notice the extra space in your case, but you won't miss any performance or functionality.

    The EVGA B3 power supplies feature a Long Life Sleeve Bearing Fan, resulting in a quieter operation and a longer lifespan. Alternatively, flip on the EVGA ECO mode for fully silent operation at low to medium loads.

    Featuring Japanese capacitors on the mainboard, the B3 lineup takes the already efficient B2 series and makes it even better with near-Silver efficiency and tighter voltage regulation (<2%). These power supplies have up to 88% efficiency!

    Use only the cables you need, reducing cable clutter and improving case airflow. Available on all B3 models.

    EVGA ECO mode means the power supply is completely silent during low to medium loads. This is one quiet power supply!

    5 Year EVGA Warranty
    World leading warranty and support for 5 years.Features• Fully Modular to reduce clutter and improve airflow.
    • 5 Year Warranty and unparalleled EVGA Customer Support.
    • 80 PLUS Bronze certified, with 85% efficiency or higher under typical loads.
    • Heavy-duty protections, including OVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), SCP (Short Circuit Protection), and OTP (Over Temperature Protection).
    • EVGA ECO Intelligent Thermal Control System elminates fan noise at low to medium loads.



    Size        ATX

    Edition  550 B3

    Wattage               550 W

    80 PLUS Certification      80 PLUS Bronze

    Max. Efficiency  85 %

    Cooling Fan

    Fans       1 x 130mm

    Internal +12V Rails           Single (1) Rail

    Rail 1 +12V          45.8 A

    Rail 2 +12V          N/A

    Rail 3 +12V          N/A

    Rail 4 +12V          N/A

    Rail 5 +12V          N/A

    Rail 6 +12V          N/A

    Max. Combined Output +12V      45.8 A

    Modular               Yes

    Modularity          Full Modular

    SLI/CrossFire      Yes

    EPS 12V                Yes

    Motherboard Connector              20+4-pin


    1 x 4+4-pin CPU +12V (EPS)

    4 x 4-pin Molex

    2 x 6+2-pin PCIe

    1 x FDD Power

    6 x SATA

    Dimensions        85 x x 150 (WxHxD)

    Package Type     Retail

    Technical Specifications


    Device Type Power supply - internal
    Specification Compliance ATX
    Localisation United Kingdom

    Power Device

    Input Voltage AC 100-240 V
    Frequency Required 50 - 60 Hz
    Power Output Connectors Details 1 x power 24 pin ATX ¦ 1 x power 8 pin EPS12V with detachable 4 pin ATX12V section ¦ 2 x 8 pin PCI Express power with detachable 2 pin section ¦ 3 x 4 PIN internal power ¦ 6 x 15 pin Serial ATA power ¦ 1 x 4 PIN mini-power connector
    Output Voltage +3.3, +5, ±12 V
    Power Capacity 550 Watt
    Output Current +3.3V - 20 A ¦ +5V - 20 A ¦ +12V - 45.8 A ¦ -12V - 0.5 A ¦ +5VSB - 3 A
    Efficiency 88%
    Modular Cable Management Yes
    80 PLUS Certification 80 PLUS Bronze


    MTBF 100,000 hour(s)
    Cooling System 130mm fan
    Features Overheat protection, over current protection, over voltage protection, overpower protection, undervoltage protection, short-circuit protection, ECO Intelligent Thermal Control System, Eco-Mode
    Compliant Standards TUV, CB, FCC, RoHS, WEEE, cTUVus, Energy-Related Products (ErP) Lot 6, RCM

    Manufacturer Warranty

    Service & Support Limited warranty - 5 years

    Environmental Parameters

    Min Operating Temperature 0 °C
    Max Operating Temperature 40 °C

    Dimensions & Weight

    Depth 15 cm
    Height 8.5 cm
    Weight 1.81 kg

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