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    Small Form Factor PSUs

    12 Results
    Corsair SF Series SF750 750W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply
    efficiency label
    Corsair SF Series SF750 750W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply
    POW-CRS-02468
    (0)
    Outfit your next SFF PC with the CORSAIR SF Series 80 PLUS Platinum SFX Power Supply for compact, ATX 3.1 compliant, fully modular Platinum power.
    £144.95
    Incl. VAT
    In Stock
    Free Delivery
    Lian Li SP Platinum 1000W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply - White
    efficiency label
    Lian Li SP Platinum 1000W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply - White
    POW-LIA-06205
    (0)
    1000W SFX PSU, Modular design, 80 PLUS Platinum, Compliant with the ATX 3.1 standard, 92mm FDB fan with Zero RPM mode, Flexible braided cables
    £159.95
    Incl. VAT
    In Stock
    Save 10%
    FSP Dagger PRO 850W ATX 3.1 PCIe 5.1 80 Plus Gold Modular SFX Power Supply
    efficiency label
    FSP Dagger PRO 850W ATX 3.1 PCIe 5.1 80 Plus Gold Modular SFX Power Supply
    POW-FSP-06662
    (0)
    FSP Dagger PRO 850W SFX 80+ Gold ATX 3.1 PCIe 5.1 Modular Power Supply packs serious power in a compact frame — a fully-modular SFX unit delivering 850 W, 80 PLUS Gold efficiency, and native support for ATX 12 V v3.1 / PCIe 5.1 hardware.
    Price reduced from £129.95 to £116.95
    Incl. VAT
    In Stock
    Free Delivery
    Lian Li SP Platinum 1000W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply
    efficiency label
    Lian Li SP Platinum 1000W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply
    POW-LIA-06204
    (0)
    1000W SFX PSU, Modular design, 80 PLUS Platinum, Compliant with the ATX 3.1 standard, 92mm FDB fan with Zero RPM mode, Flexible braided cables
    £159.95
    Incl. VAT
    In Stock
    Free Delivery
    Lian Li SP Platinum 850W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply
    efficiency label
    Lian Li SP Platinum 850W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply
    POW-LIA-06202
    (0)
    850W SFX PSU, Modular design, 80 PLUS Platinum, Compliant with the ATX 3.1 standard, 92mm FDB fan with Zero RPM mode, Flexible braided cables
    £142.99
    Incl. VAT
    In Stock
    Corsair SF Series SF850 850W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply
    efficiency label
    Corsair SF Series SF850 850W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply
    POW-CRS-02469
    (0)
    Outfit your next SFF PC with the CORSAIR SF Series 80 PLUS Platinum SFX Power Supply for compact, ATX 3.1 compliant, fully modular Platinum power.
    £174.95
    Incl. VAT
    In Stock
    Free Delivery
    Lian Li SP Platinum 850W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply - White
    efficiency label
    Lian Li SP Platinum 850W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply - White
    POW-LIA-06203
    (1)
    850W SFX PSU, Modular design, 80 PLUS Platinum, Compliant with the ATX 3.1 standard, 92mm FDB fan with Zero RPM mode, Flexible braided cables
    £142.99
    Incl. VAT
    In Stock
    Save 8%
    Asus ROG Loki SFX-L 750W ATX 3.1 PCIe 5.0 80 Plus Platinum Modular Power Supply
    efficiency label
    Asus ROG Loki SFX-L 750W ATX 3.1 PCIe 5.0 80 Plus Platinum Modular Power Supply
    CA-05Y-AS
    (1)
    • 750 W 100 - 240 V
    • Motherboard power connector: 20+4 pin ATX
    • PC SFX 80 PLUS Platinum
    • 12 cm
    • Black, Silver
    Price reduced from £174.95 to £159.95
    Incl. VAT
    In Stock
    Asus ROG Loki SFX-L 1000W ATX 3.1 PCIe 5.0 80 Plus Platinum Modular Power Supply
    efficiency label
    Asus ROG Loki SFX-L 1000W ATX 3.1 PCIe 5.0 80 Plus Platinum Modular Power Supply
    CA-05W-AS
    (5)
    • 1000 W 100 - 240 V
    • Motherboard power connector: 24-pin ATX
    • PC SFX 80 PLUS Platinum
    • 12 cm
    • Black, Silver
    £204.95
    Incl. VAT
    In Stock
    Asus ROG Loki SFX-L 850W ATX 3.1 PCIe 5.0 80 Plus Platinum Modular Power Supply - White
    efficiency label
    Asus ROG Loki SFX-L 850W ATX 3.1 PCIe 5.0 80 Plus Platinum Modular Power Supply - White
    CA-06F-AS
    (4)
    ROG Loki 850W Platinum White Edition, The Quietest SFX-L PSU.
    £209.99
    Incl. VAT
    In Stock
    Asus ROG Loki SFX-L 850W ATX 3.1 PCIe 5.0 80 Plus Platinum Modular Power Supply
    efficiency label
    Asus ROG Loki SFX-L 850W ATX 3.1 PCIe 5.0 80 Plus Platinum Modular Power Supply
    CA-05X-AS
    (3)
    • 850 W 100 - 240 V
    • Motherboard power connector: 24-pin ATX
    • PC SFX 80 PLUS Platinum
    • 12 cm
    • Black, Silver
    £194.95
    Incl. VAT
    In Stock
    Corsair SF Series SF1000 1000W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply
    efficiency label
    Corsair SF Series SF1000 1000W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular SFX Power Supply
    POW-CRS-02470
    (0)
    Outfit your next SFF PC with the CORSAIR SF Series 80 PLUS Platinum SFX Power Supply for compact, ATX 3.1 compliant, fully modular Platinum power.
    £199.99
    Incl. VAT
    In Stock

    Small Form Factor PSUs


    Lian Li SP850W SFX Modular 80 Plus Gold Power Supply - White

    Achieve exceptional power delivery for a SFF gaming PC, with a small form factor PSU from Overclockers UK. Discover a wide variety of models from well-known manufacturers including Lian Li, Phanteks, ASUS, Corsair, and many others. SFF PSUs are generally smaller than standard ATX power supplies, and can encompass SFX, SFX-L and TFX models. Small form factor PSUs are perfectly suited for enthusiasts who wish to build powerful Mini-ITX or Micro-ATX gaming PCs, which may have a limit on space available for components. Despite their reduced size, a small form factor power supply can still boast exceptional power delivery, with models capable of producing between 300W and 1000W of power. Additionally, they are very efficient, which is reflected in their 80 Plus ratings, generally at 80 Plus Bronze and above.


    POWER SUPPLY FORM FACTORS EXPLAINED – EVERYTHING YOU NEED TO KNOW! blog image

    Want to Read More?

    Power supplies can come in a wide range of sizes. To learn more about form factors, check out our article diving into the different sizes of PSU available today, over on the Overclockers UK blog.

    Read More