Free delivery*

£ 63.34  inc. vat

£ 52.78 ex. vat

In Stock

Order within for delivery on Saturday, 18th August

Click & Collect Available

Cooler Master MasterWatt 650 Semi Modular PSU

  • 80 PLUS Bronze Certified
  • Durable LDB Bearing
  • Semi-Fanless up to 15% load
  • Dual Forward and DC-to-DC Circuit Design
  • More Conductive PCI-e Cables

View full description

QuickFind: 826434

Mfr part code: MPX-6501-AMAAB-UK

  • {{ title }}
  • {{/lists}}

    Cooler Master MasterWatt 650 Semi Modular PSU Product Description



    Semi-fanless Modular 80 PLUS Bronze Certified Power Supply

    The MasterWatt is an 80 Plus Bronze power supply with an innovative semi-fanless mode. Under 15% load,the MasterWatt fan remains idle,offering zero dBA. When demand for power increases,a gradual fan curve provides measured cooling with little to no noise at any output level. Dual forward / DC-to-DC topology is employed to keep the voltage stable in all conditions. For increased performance,MasterWatt is equipped with 16 AWG power cables,which reduces resistance,thereby increasing efficiency.

    80 PLUS Bronze Certified

    The 80 PLUS Bronze certification guarantees that MasterWatt delivers an average efficiency of 85%.

    Durable LDB Bearing

    Cooler Master 120mm Silencio FP fan combines sealed LDB bearings with quiet fan blades offering a long lifetime of quiet cooling.

    • A: Sealant on the The groove outside of the bearing helps to circulate the oil
    • B: Sealant on the bobbin and featuring the highest dustproof level IP6X
    • C: Recycle slot adds extra storage space for the oil
    • D: The shaft makes the oil flow by pumping it while spinning

    Semi-Fanless up to 15% load

    MasterWatt Operates at 0dB under 15% load. Experience noise-free basic computing.





    Dual Forward and DC-to-DC Circuit DesignMore Conductive PCI-e Cables

    The Dual Forward and DC-to-DC circuit design offers reliability and stability. This is especially significant in +3.3V and +5V outputs.






    More Conductive PCI-e Cables

    The MasterWatt uses 16AWG cables for PCI-e cables. Less resistance and better efficiency,providing you a safer user environment.

    Technical Specifications

    Power Device

    Power Output Connectors Details 1 x power 24 pin ATX with detachable 4 pin section ¦ 9 x 15 pin Serial ATA power ¦ 1 x power 8 pin +12V with detachable 4 pin section ¦ 3 x 4 PIN internal power ¦ 1 x 4 PIN mini-power connector ¦ 4 x 8 pin PCI Express power with detachable 2 pin section
    Output Voltage +3.3, +5, ±12 V
    Power Capacity 650 Watt
    Output Current +3.3V - 22 A ¦ +5V - 22 A ¦ +12V - 54.1 A ¦ -12V - 0.3 A ¦ +5VSB - 3 A
    Efficiency 85%
    80 PLUS Certification 80 PLUS Bronze
    Input Voltage AC 100-240 V
    Frequency Required 50 - 60 Hz


    MTBF 100,000 hours
    Cooling System 120 mm fan
    Features Overheat protection, over current protection, over voltage protection, overpower protection, undervoltage protection, short-circuit protection, DC-DC technology, LDB bearing cooling fan
    Compliant Standards BSMI, CB, CCC, FCC, TUV Rh, cTUVus, KC, EAC, RCM, ErP Lot 6 2013 Ready

    Manufacturer Warranty

    Service & Support Limited warranty - 5 years

    Environmental Parameters

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

    Dimensions & Weight

    Width 15 cm
    Depth 14 cm
    Height 8.6 cm


    Device Type Power supply - active Power Factor Correction (PFC) - internal
    Specification Compliance ATX12V 2.4
    PSU Form Factor ATX
    Localisation United Kingdom

    Cooler Master MasterWatt 650 Semi Modular PSU Ask an owner

    Cooler Master MasterWatt 650 Semi Modular PSU Product Discussion

    Our comments box is a great way for you to view other people's feedback about products on, and add your own.

    • This tool is open to everyone.
    • You are responsible for the contents of your comments and any consequences that may arise as a result of them.
    • Comments that contain any of the following will be deleted: terms considered explicit and inappropriate; defamatory, obscene, unlawful, harmful, or offensive.