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    Power Supplies over 800 Watts - High-End for Enthusiasts and Overclocking

    Discover our power supplies over 800 watts, designed specifically for high-end PCs and overclocking. Get maximum performance for the most demanding applications and games. Perfect for enthusiasts who want to get the most out of their system.

    137 Results
    Corsair RMe Series RM850e 80 PLUS Gold Power Supply, modular, ATX 3.1, PCIe 5.1 - 850 Watts, white
    efficiency label efficiency label
    Corsair RMe Series RM850e 80 PLUS Gold Power Supply, modular, ATX 3.1, PCIe 5.1 - 850 Watts, white
    NECS-191
    (0)
    Fully modular 80 Plus Gold power supply, 850 watts continuous power, ATX-3.1 standard with PCIe-5.1 support, Zero-RPM fan mode, Cybenetics Gold certified, 12V-2x6 GPU cable included
    139,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    Montech Century II 80 PLUS Gold Power Supply, fully modular, ATX 3.1, PCIe 5.1 - 850 Watts
    efficiency label
    Montech Century II 80 PLUS Gold Power Supply, fully modular, ATX 3.1, PCIe 5.1 - 850 Watts
    NEMT-010
    (1)
    80 PLUS Gold power supply, 850 watts continuous power, modular, PCIe 5.1 & ATX 3.1
    94,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    Corsair SF Series SF850 SFX Power Supply, 80 PLUS Platinum, ATX 3.1 / PCIe 5.1 - 850 Watts, black
    efficiency label efficiency label
    Corsair SF Series SF850 SFX Power Supply, 80 PLUS Platinum, ATX 3.1 / PCIe 5.1 - 850 Watts, black
    NECS-180
    (0)
    Highly efficient SFX power supply with PCIe 5.1, ATX 3.1, 850 watts, with 80 PLUS Platinum and Cybenetics Platinum, fully modular cable management, including 12V-2x6 cable for graphics cards.
    209,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    MSI MAG A850GL PCIe5 White Power Supply, 80 PLUS Gold, fully modular, ATX 3.0, PCIe 5.0 - 850 Watt
    efficiency label
    MSI MAG A850GL PCIe5 White Power Supply, 80 PLUS Gold, fully modular, ATX 3.0, PCIe 5.0 - 850 Watt
    NEMS-005
    (0)
    850-watt power supply from MSI, 80 PLUS Gold efficiency, strong 12V rail, four PCIe connectors, noise-optimised fan, PCI 5.0
    122,88 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    MSI MAG A850GL PCIe5 power supply, 80 PLUS Gold, fully modular, ATX 3.0, PCIe 5.0 - 850 Watt
    efficiency label
    MSI MAG A850GL PCIe5 power supply, 80 PLUS Gold, fully modular, ATX 3.0, PCIe 5.0 - 850 Watt
    NEMS-004
    (0)
    850-watt power supply from MSI, 80 PLUS Gold efficiency, strong 12V rail, four PCIe connectors, noise-optimized fan, PCI 5.0
    123,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    Save 9%
    Seasonic Prime TX-1600 Noctua Edition Power Supply, 80 PLUS Titanium, Modular, ATX 3.1, PCIe 5.0 - 1,600 Watts
    efficiency label
    Seasonic Prime TX-1600 Noctua Edition Power Supply, 80 PLUS Titanium, Modular, ATX 3.1, PCIe 5.0 - 1,600 Watts
    NESE-194
    (0)
    Highly efficient ATX 3.1 power supply, supports PCIe 5.0, 80 PLUS Titanium, 1,600 Watts rated power, 120mm fan with SSO2 bearing, fully modular
    Price reduced from 549,90 € to 499,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    Corsair SF Series SF1000 SFX Power Supply, 80 PLUS Platinum, ATX 3.1 / PCIe 5.1 - 1,000 Watts, black
    efficiency label efficiency label
    Corsair SF Series SF1000 SFX Power Supply, 80 PLUS Platinum, ATX 3.1 / PCIe 5.1 - 1,000 Watts, black
    NECS-179
    (1)
    High-efficiency SFX power supply with PCIe 5.1, ATX 3.1, 1,000 watts with 80 PLUS Platinum and Cybenetics Platinum, fully modular cable management, including 12V-2x6 cable for graphics cards
    219,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    SilverStone Gemini 1300C Platinum redundant 2U power supply - 1,300 Watts
    efficiency label
    SilverStone Gemini 1300C Platinum redundant 2U power supply - 1,300 Watts
    NEST-222
    (0)
    2HE-compatible design, 1300 watt power, redundancy-oriented structure, compact design
    1.149,00 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    Seasonic Prime TX-1600, 80 PLUS Titanium power supply, modular, ATX 3.1, PCIe 5.1 - 1600 Watt
    efficiency label efficiency label
    Seasonic Prime TX-1600, 80 PLUS Titanium power supply, modular, ATX 3.1, PCIe 5.1 - 1600 Watt
    NESE-167
    (1)
    High-performance ATX 3.1 power supply from Seasonic, with 80 PLUS Titanium, 1,600 watts of power, modular cable management, 6x 6+2-pin PCIe connectors, 2x 12+4 PCIe 5.1 connectors
    549,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    ASUS ROG Thor Titanium III, 80 PLUS Titanium Power Supply, Modular PCIe 5.1 - 1600 Watt
    efficiency label
    ASUS ROG Thor Titanium III, 80 PLUS Titanium Power Supply, Modular PCIe 5.1 - 1600 Watt
    NEAS-038
    (1)
    ATX 3.1 high-end power supply, highest efficiency class with 80 PLUS Titanium, 1,600 W total output, supports PCIe 5.1, fully modular cable management, ATX form factor, magnetic OLED display
    799,00 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    Corsair HXi Series (2023) HX1000i power supply 80 PLUS Platinum, modular - 1000 Watt, black
    efficiency label
    Corsair HXi Series (2023) HX1000i power supply 80 PLUS Platinum, modular - 1000 Watt, black
    NECS-169
    (2)
    Semi-passive 80 Plus Platinum power supply, 1,000 watts continuous power, 1x 12+4-pin 12VHPWR PCIe 5.0, 2x 6+2-pin PCIe, 8x SATA, ATX 3.0 standard
    229,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    Seasonic Vertex PX 80 PLUS Platinum power supply, modular, ATX 3.0, PCIe 5.0 - 1000 Watt
    efficiency label
    Seasonic Vertex PX 80 PLUS Platinum power supply, modular, ATX 3.0, PCIe 5.0 - 1000 Watt
    NESE-163
    (1)
    High-performance power supply with PCIe 5.0, with 80 PLUS Platinum, 1,000 watts power, modular cable management, 3x 6+2-pin connectors for graphics cards, with 12+4-pin PCIe 5.0 12VHPWR connection for high-end graphics cards
    254,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    Kolink Regulator 80 PLUS Gold PSU, ATX 3.0, PCIe 5.0, modular - 1200 Watts
    efficiency label
    Kolink Regulator 80 PLUS Gold PSU, ATX 3.0, PCIe 5.0, modular - 1200 Watts
    NEKL-050
    (1)
    Premium 80 PLUS Gold power supply rated for 1,200 Watts output, Fully modular cable management, One 12VHPWR 12+4-pin & four 6+2-Pin PCIe connectors, 2x 4+4-pin CPU & 8x SATA, ATX 3.0 standard
    159,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    MSI MEG Ai1300P PCIe5 power supply, 80 PLUS Platinum, fully modular, ATX 3.0, PCIe 5.0 - 1300 Watt
    efficiency label
    MSI MEG Ai1300P PCIe5 power supply, 80 PLUS Platinum, fully modular, ATX 3.0, PCIe 5.0 - 1300 Watt
    NEMS-001
    (3)
    High-performance power supply with PCIe 5.0, with 80 PLUS Platinum, 1,300 watts of power, modular cable management, 8x 12+4-pin connectors for graphics cards, with 12+4-pin PCIe 5.0 12VHPWR connector for high-end graphics cards.
    328,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    MSI MPG A850G PCIe5 Power Supply, 80 PLUS Gold, fully modular, ATX 3.0, PCIe 5.0 - 850 Watt
    efficiency label
    MSI MPG A850G PCIe5 Power Supply, 80 PLUS Gold, fully modular, ATX 3.0, PCIe 5.0 - 850 Watt
    NEMS-003
    (6)
    Powerful power supply with PCIe 5.0, with 80 PLUS Gold, 850 watt power, modular cable management, 6x 6+2-pin connectors for graphics cards, with 12+4-pin PCIe 5.0 12VHPWR connector for high-end graphics cards
    133,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    See Details
    Corsair RMe Series RM850e 80 PLUS Gold Power Supply, modular, ATX 3.1, PCIe 5.1 - 850 watts, black
    efficiency label
    Corsair RMe Series RM850e 80 PLUS Gold Power Supply, modular, ATX 3.1, PCIe 5.1 - 850 watts, black
    NECS-185
    (0)
    Fully modular 80 Plus Gold power supply, 850 watts continuous power, ATX 3.1 standard with PCIe 5.1 support, Zero RPM fan mode, Cybenetics Gold certified, 12V 2x6 GPU cable included
    119,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
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    Corsair HXi Series (2025) HX1200i Power Supply 80 PLUS Platinum, modular - 1200 Watt
    efficiency label efficiency label
    Corsair HXi Series (2025) HX1200i Power Supply 80 PLUS Platinum, modular - 1200 Watt
    NECS-187
    (0)
    Fully modular 80-PLUS Platinum power supply, 1,200 watts continuous power, ATX-3.1 standard with PCIe-5.1 support, Zero-RPM fan mode, Cybenetics Platinum certified, 12V-2x6 GPU cable included, integrated USB-C port for monitoring via iCUE software.
    239,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    See Details

    PSUs above 800 Watts

    Are you looking for a powerful power supply unit with over 800 watts for your gaming or overclocking PC? Then you've come to the right place! Our selection of Power Supply Units (PSUs) over 800 watts provides you with the optimal power supply for demanding systems, where highly overclocked components and/or multiple linked graphics cards in a CrossFireX or SLI setup operate. Find out here what you need to consider when buying a power supply unit and which features are particularly important.

    Power supplies are the energy providers in computer systems. They convert the alternating current from the socket into direct current and transform the voltage to the values required by the PC components. The Power Supply Units (PSUs) over 800 watts are the right choice for extremely power-hungry high-end systems, where highly overclocked components and/or multiple linked graphics cards in a CrossFireX or SLI setup operate. For more detailed information, it's best to check out relevant hardware forums or contact the Caseking service hotline before making a purchase.

    Various Features of PSUs over 800 Watts

    Beyond the power output provided by a power supply, there are a few other points to consider before making a purchase:

    • First, make sure that the power supply fits into the case being used. In addition to different form factors (SFX, Flex-ATX, PicoPSU), even the well-known ATX power supplies, especially in this extreme power class, can have varying depths. Therefore, you should measure in the case to see how long the power supply can be at most.
    • Almost as important as the total power output of the PSU are the amperage ratings available on the individual rails. Especially graphics cards and processors require specific amperage values for smooth continuous operation. Some, particularly stronger power supplies, have multiple rails instead of a central 12-volt rail or split them up.
    • The type and number of connectors of a PSU are also of great importance. Depending on the motherboard, graphics card(s), and the number of hard drives or SSDs, different numbers of ATX12V, PCIe, and SATA connectors are required.
    • If you want a particularly tidy setup, you can also get a semi-modular or fully modular power supply ("cable management"), where some or all of the cable strands can be individually connected to the power supply housing.
    • Nowadays, the efficiency of a power supply is more important than ever. The higher the efficiency, the closer the power that the power supply draws from the socket and the power it provides to the PC are to each other. The wattage difference is converted into heat. This means that more efficient power supplies are not only more energy-efficient but also run cooler and therefore quieter. The "80 PLUS" initiative tests power supplies (mostly at 115 V input voltage of the US power grid) and awards different certificates depending on the efficiency.
    • Some particularly efficient power supplies that produce little waste heat also come in a semi-passive design in this power class, meaning their fan only turns on when the load and/or temperature makes it necessary.
    • And of course, modern PSUs should have the most important protection circuits, such as overvoltage protection (OVP), overcurrent protection (OCP), or overload protection (OPP).