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  • be quiet! SFX Power 2 power supply unit 300 W 20+4 pin ATX Black

    be quiet! SFX Power 2 power supply unit 300 W 20+4 pin ATX Black

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    be quiet! SFX Power 2 power supply unit 300 W 20+4 pin ATX Black Feefo Quzo Reviewsbe quiet! SFX Power 2 power supply unit 300 W 20+4 pin ATX Black TrustPilot Quzo Reviews

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    The dual 12V rail design supports high stability as the CPU receives its power through an independent rail. A PCIe connector provides power for a demanding graphics card. Safety protections defend against overcurrents, over- and undervoltages, short circuits and overloads, thus keeping your valuable components safe.


    The SFX Power 2 can deliver 300W of continuous power. This ensures a steady and reliable operation even when your PC meets an unexpectedly heavy load.


    The 80 PLUS Bronze certification with an efficiency rating of up to 89% is convincing evidence of this PSU’s power saving operation.
    General Information

    General Information for Be Quiet

    be quiet! SFX Power 2, 300 W, 100 - 240 V, 350 W, 50 - 60 Hz, 4.5 A, +12V1,+12V2,+3.3V,+5V,+5Vsb,-12V

    Be Quiet! Sfx Power 2 300W Psu
    Compact And Silent Energy

    The Compact Psu Sfx Power 2 300W Gives You More For Your Mini Or Media Pc. Its Design Supports The Latest Technologies And Efficiency Standards, While Providing Solid Voltages And Enough Power To Support A Discrete Pcie Graphics Card.
    For Compact Pc Systems That Perform Well Beyond The Ordinary, With A Great Combination Of Quietness, Features, Reliability And Efficiency, Choose Sfx Power 2 300W.
    • Strong Dual 12V-Rail Design Supports High Stability And A Pcie Connector For Peripherals That Need More Power, Like A Pcie Graphics Card
    • 300 Watts Of Continuous Power To Ensure Steady Operation Even When Your Pc Meets An Unexpectedly Heavy Load
    • 80Plus Bronze Certification And Up To 89% Power Conversion Efficiency Let You Use The Provided Energy More Efficiently And Reduces Your Power Bills
    • Product Conception, Design And Quality Control In Germany
    • Mini And Media Pc Systems
    • Classic Office And Web Browsing Applications
    • High-Power, High-Efficiency Upgrade In Any Pc Chassis Requiring A Sfx Form Factor Psu
    Energy Efficiency
    • 80Plus Bronze Certification Independently Verifies The High Operating-Efficiency (Up To 89%) Of This Design
    • Higher Efficiency Means Cost Savings, Because Your Pc Draws Less Power From The Mains. It Also Means Less Wasted Heat, Less Cooling Required, And An Overall Quieter Operation
    • Standby Drain Of Less Than 0.25 Watts
    • Meets Energy Star 5.2 Guidelines
    • Fulfills Erp 2014 Guidelines
    • Zero Load Design And Support Of Intel’S Deep Power Down C6/C7 Mode
    • Use Of The Latest Technology Ensures Premium Performance And Reliability
    • Supports The Latest Intel And Amd Cpus
    • Dual Independent 12V-Rails Improve Power Signal Stability
    • Full Suite Of Top Safety Protections Defends Against Over-Currents, Over- And Under-Voltages, Short Circuits, And Overloads, Thus Safeguarding Your Valuable Components
    • Low-Noise Operation
    • An Automatically Temperature-Regulated 80 Mm High-Quality Fan
    • Assured Balance Between Cooling Performance And Quiet Operation
    Highly Compatible And Convenient
    • Sleeved Cable Lengths Up To 50Cm Allow For Improved Cooling And Are Perfect For Mini Pc Cases
    • System Features 9 Connectors For Flexible System Builds
    • Connectors Are Compatible With Older Components As Well As Those Still On The Drawing Board
    • Pcie Connector Supports Discrete Graphics Card
    • Clearly Labeled Plugs Enable Simple Installation
    Product Conception, Design And Quality Control In Germany
    • 2- Year Warranty
    • Quick Support Is Available Via Our International Hotline, Mondays To Fridays From 9:00 Am To 5:30 Pm German Local Time: (0) 40-736 76 86 - 98

    Manufacturer Supplied Images
    Please note, these images are supplied by the manufacturer and are for illustration purposes only. If you have any queries about this product, please contact us and we will be happy to help.

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    #42 in PSU

    Supplied With
    • 100% Genuine Product
    • Quzo 21 Day Returns Policy - T&C Apply
    • All Official Packaging
    • All Applicable Guarantee(s)
    • Instruction Manuals and Documentation (where applicable)
    • Email when item is despatched.
    Popular Related Products

    SFX Power 2

    Further details for this product, SFX Power 2, can be found at the manufacturer website. Please note, these web addresse(s) are supplied by 3rd parties, Quzo is not responsible for the content.

    SFX Power 2 300W - 100000h, 80mm, 80PLUS Bronze, OCP/OVP/UVP/SCP

    be quiet! SFX Power 2. Total power: 300 W, AC input voltage: 100 - 240 V, Peak power: 350 W. Motherboard power connector: 20+4 pin ATX. Purpose: PC, Power supply unit (PSU) form factor: SFX, 80 PLUS certification: 80 PLUS Bronze. Product colour: Black, Cooling type: Active, Fan diameter: 8 cm. Width: 100 mm, Depth: 125 mm, Height: 63.5 mm

    Warranty information: 2 Years

    Initial Release Date: 03/02/2014

    Product Specification

    be quiet! SFX Power 2 power supply unit 300 W 20+4 pin ATX Black Specifications

    Manu. Code
    Weight (approx)
    Product TypePSU
    Technical details
    Product colour
    Cooling typeActive
    Number of fans1 fan(s)
    Fan diameter8 cm
    Fan speed2219
    On/off switchY
    Form FactorSFX
    Response Time
    Ports & interfaces
    Motherboard power connector
    20+4 pin ATX
    Number of SATA power connectors4
    PCI Express power connectors (6+2 pin)1
    CPU P4 connector (4-pin)1
    Floppy drive power connector1
    Floppy disk drive connectorY
    Total power
    300 W
    Input current4.5 A
    Maximum input current (@110V)+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
    Power factor0.9
    Power Factor Correction (PFC) typeActive
    Combined power (+3.3V)105 W
    Combined power (+12V)264 W
    Combined power (+5V)105 W
    Combined power (-12V)6 W
    Combined power (+5Vsb)12.5 W
    Max output current (+3.3V)21 A
    AC Input Voltage100 - 240 V
    AC input frequency50 - 60 Hz
    Max output current (+12V1)14 A
    Max output current (+12V2)16 A
    Max output current (+5V)20 A
    Max output current (-12V)0.5 A
    Max output current (+5Vsb)2.5 A
    Hold time17 ms
    AC Input Voltage100 - 240
    AC input frequency50 - 60
    Input current4.5
    Combined power (+3.3V)105
    Combined power (+12V)264
    Combined power (+5V)105
    Combined power (-12V)6
    Combined power (+5Vsb)12.5
    Max output current (+3.3V)21
    Max output current (+12V1)14
    Max output current (+12V2)16
    Max output current (+5V)20
    Max output current (-12V)0.5
    Max output current (+5Vsb)2.5
    Hold time17
    Weight & dimensions
    100 mm
    Depth125 mm
    Height63.5 mm
    Weight930 g
    Internal I/O
    Peripheral (Molex) power connectors (4-pin)
    Power supply unit (PSU) form factor
    Peak power350 W
    80 PLUS certification80 PLUS Bronze
    Noise level (silent mode, <30%)16.6 dB
    Noise level (quiet mode, 50%)17.2 dB
    Noise level (full-load mode, 100%)31.4 dB
    Mean time between failures (MTBF)100000 h
    Peak power350
    Noise level (silent mode, <30%)16.6
    Noise level (quiet mode, 50%)17.2
    Noise level (full-load mode, 100%)31.4
    Mean time between failures (MTBF)100000
    Noise level
    31.4 dB
    Power protection featuresOver current,Over voltage,Short circuit,Under voltage
    Noise level31.4
    Power protection featuresOver current, Over voltage, Short circuit, Under voltage
    Operational conditions
    Operating temperature (T-T)
    10 - 50 C
    Energy Star certified
    RoHS complianceN
    CertificationCE, CB, TV
    Packaging data
    Warranty card
    Package width199 mm
    Package depth195 mm
    Package height75 mm
    Package weight1.3 kg
    Gaming PlatformsPC Platform
    Colour of productBlack
    Returns & Exchanges

    21 Days Return Policy

    We want you to be delighted every time you shop with us. Occasionally though, we understand that you may wish to return items.

    Items can be returned direct to us within 21 days from the day of dispatch for a refund or exchange.

    To qualify for this, the product must not have been worn, and be in brand new condition. You must return all the original packaging, instructions, guarantee and any extras.

    All technology / electrical items including but not restricted to TVs, laptops, tablets etc must be still in their original packaging with the manufacturer seals still in tact. We are unable to accept returns for products which have been opened and/or used.
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