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    Power Supplies up to 800 Watts - High-Performance for Gaming PCs

    Power supply units up to 800 watts offer you the power your gaming PC needs. Enjoy smooth gameplay and a stable power supply for demanding applications. Perfect for gamers and creative professionals.

    72 Results
    NEST-151
    (0)
    Compact SFX power supply with 80 PLUS Gold, 700 watts of power with a strong 58.4 A 12V single rail, fully modular cable management, 4x 6+2-pin PCIe connectors
    137,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEST-125
    (0)
    Quiet black 700-watt power supply from the Strider Essential Series (80 PLUS) with 54A single rail, 4x PCIe, and 120mm fan
    66,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEST-176
    (0)
    Redundant power supply, 800 watt power, 24/7 operation, 2-chamber design, hot-swappable, 2U form factor
    852,90 €
    Incl. VAT, add. delivery costs
    Pre Order Expected restock at 04.12.2026
    NEST-149
    (1)
    Compact SFX-L power supply from SilverStone, 80 PLUS Platinum certified, 700 watts of power, semi-passive 120mm fan, 58.4A single rail on 12V, fully modular cable management.
    157,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NESE-133
    (0)
    Fanless 700-watt power supply from Seasonic, high efficiency due to 80 Plus Titanium certification, strong single rail with 58 A, fully modular cable management with flat cables
    249,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEST-179
    (0)
    Compact SFX power supply from SilverStone, with 80 PLUS Gold, 750 watts of power, fully modular cable management, 4x 6+2-pin PCIe connectors
    167,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NESE-197
    (0)
    Efficient ATX-3.1 power supply, supports PCIe 5.1, 80 PLUS Gold, 650 watts rated power, 120 mm fan with hydro-dynamic bearing, OptiSink design
    94,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEST-166
    (1)
    Powerful TFX power supply with 700 watts, high efficiency: 80 PLUS Gold, sleeved connection cables, 80 mm large PWM fan, suitable for 24/7 continuous operation
    144,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEST-218
    (0)
    80 Plus Platinum certificate, 800 watts, 2U-CRPS form factor, multiple connections
    919,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEST-187
    (0)
    80-PLUS-Bronze power supply, 750 watts rated power, 2x 4+4-pin / 2x 6+2-pin / 8x SATA, modular cable management, ATX-2.4 standard
    113,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEST-213
    (0)
    High-performance power supply with PCIe 5.0 from SilverStone, with 80 PLUS Gold, 750 watt power, modular cable management, with 12VHPWR connection for high-end graphics cards
    115,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEST-214
    (0)
    High-performance power supply with PCIe 5.0 from SilverStone, with 80 PLUS Gold, 750 watts of power, modular cable management, with 12VHPWR connector for high-end graphics cards
    109,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEST-183
    (0)
    80-PLUS-Bronze power supply, 650 watt rated power, 1x 8-pin / 1x 4+4-pin / 4x 6+2-pin / 6x SATA, fixed cable management, ATX-2.4 standard
    70,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEST-220
    (0)
    ATX-3.1 power supply with 750 watts of power, 80 PLUS Platinum certification, switchable hybrid mode, fully modular cable management, with 12V-2x6 cable for graphics cards
    176,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEGB-030
    (0)
    750 watt power supply with bronze efficiency, ATX form factor, 750 watt total power, non-modular, 120 mm fan with fluid dynamic bearing, various protection circuits
    53,59 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NESE-196
    (1)
    Efficient ATX 3.1 power supply, supports PCIe 5.1, 80 PLUS Gold, 750 watts rated power, 120 mm fan with hydro-dynamic bearing, OptiSink design
    99,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NEAD-012
    (2)
    750 W ATX 3.0 power supply, 80 PLUS Gold efficiency, 12VHPWR connector, fixed cabling, 120mm fan, stable +12 V rail, comprehensive protection circuits, active PFC
    74,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NEAS-010
    (0)
    Powerful ATX power supply with 750 watts, high efficiency with 80 PLUS Bronze certification, sleeved cables, 6-year manufacturer’s warranty
    54,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NECS-181
    (0)
    Highly efficient SFX power supply with PCIe 5.1, ATX 3.1, 750 watts, featuring 80 PLUS Platinum and Cybenetics Platinum, fully modular cable management, including 12V-2x6 cable for graphics cards.
    189,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NECS-172
    (1)
    80-Plus-Bronze power supply, 650 watts continuous power, 2x 6+2-pin PCIe & 6x SATA, ATX 2.4 standard
    64,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NECS-173
    (1)
    80-Plus-Bronze power supply, 750 watts continuous power, 4x 6+2-pin PCIe & 8x SATA, ATX 2.4 standard
    72,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NECS-164
    (0)
    Semi-passive 80-Plus-Gold power supply, 750 watts continuous power, 1x 12+4-pin 12VHPWR PCIe 5.0, 3x 6+2-pin PCIe, 7x SATA, ATX 3.0 standard
    124,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NECS-184
    (1)
    Fully modular 80 Plus Gold power supply, 750 watts continuous power, ATX 3.1 standard with PCIe 5.1 support, zero RPM fan mode, Cybenetics Gold certified, 12V 2x6 GPU cable included
    129,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NECS-183
    (0)
    Fully modular 80 Plus Gold power supply, 650 watts continuous power, ATX 3.1 standard with PCIe 5.1 support, zero RPM fan mode, Cybenetics Gold certified, 12V 2x6 GPU cable included
    81,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NEMS-007
    (1)
    650-watt power supply from MSI, 80 PLUS Gold efficiency, strong 12V rail, two PCIe connectors, noise-optimized fan
    90,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NEMS-014
    (0)
    550-watt power supply from MSI, 80 PLUS Bronze efficiency, strong 12V rail, two PCIe connectors, noise-optimized fan
    58,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NEMS-006
    (0)
    750-watt power supply from MSI, 80 PLUS Gold efficiency, strong 12V rail, two PCIe connectors, noise-optimized fan, PCI 5.0
    104,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NEMS-013
    (1)
    650-watt power supply from MSI, 80 PLUS Bronze efficiency, strong 12V rail, two PCIe connectors, noise-optimized fan
    58,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NEMS-015
    (0)
    80 PLUS Gold power supply, 750 watts continuous power, non-modular, PCIe 5.1, ATX 3.1 standard
    109,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NEST-177
    (2)
    Super compact Flex-ATX power supply, with 600 watts of power, 80 PLUS Platinum certified, strong 12V single rail with 50 amperes, 2x 6+2-pin PCIe / 4x SATA / 3x Molex
    164,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NEST-175
    (0)
    Redundant power supply, 600 watt power, 24/7 operation, 2-chamber design, hot-swappable, 2U form factor
    706,90 €
    Incl. VAT, add. delivery costs
    Out of Stock
    NESE-150
    (0)
    Compact SFX power supply with 750 W, 80 PLUS Platinum efficiency, strong single rail with 62 A, fully modular cable management, four PCIe connectors, 92 mm fan with 3 phases
    184,90 €
    Incl. VAT, add. delivery costs
    Out of Stock

    PSUs up to 800 Watts

    Are you looking for a powerful power supply unit with up to 800 watts for your gaming or overclocking PC? Then you've come to the right place! Our selection of Power Supply Units (PSUs) up to 800 watts provides you with the optimal power supply for demanding systems, where high-performance components and possibly even two 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) up to 800 watts are the right choice for very powerful gaming and overclocking PCs, where power-hungry components and perhaps even two 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 up to 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 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).