Show More
    €
    -
    €
    mm
    -
    mm
    mm
    -
    mm
    mm
    -
    mm
    cm
    -
    cm
    kg
    -
    kg
    W
    -
    W
    W
    -
    W
    mm
    -
    mm
    mm
    -
    mm
    mm
    -
    mm
    -
    -
    -
    -
    -
    -
    -
    cm
    -
    cm

    PSUs - ATX and SFX Power Supply Units for PCs

    Unleash the full potential of your gaming rig or professional workstation with our top-tier Power Supply Units (PSUs). Engineered for both hardcore gamers seeking peak performance and professionals demanding unwavering reliability, our PSUs ensure your system runs smoothly under any load. Explore our selection to find the perfect power solution tailored to your needs, and experience the difference that a high-quality PSU can make in your computing experience.
    235 Results
    Save 13%
    NELI-023
    (0)
    ATX 3.1 power supply with 850 watts, L-shaped design for dual-chamber cases, energy-efficient gold certification, individually sleeved connection cables, fully modular cable management
    Price reduced from 109,90 € to 94,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEPH-033
    (1)
    Powerful ATX 3.1 power supply with 1,200 watts, highly efficient Platinum certification, cables with individually textured strands, fully modular cable management, including 12V 2x6 cable
    159,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NECS-177
    (2)
    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
    In Stock
    NEPH-031
    (2)
    Powerful ATX 3.1 power supply with 1,000 watts, highly efficient Platinum certification, cables with individually textured strands, fully modular cable management, including 12V 2x6 cable
    149,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NECS-186
    (3)
    Fully modular 80 Plus Gold power supply, 1,000 watts continuous power, ATX 3.1 standard with PCIe 5.1 support, zero RPM fan mode, Cybenetics Gold certified, 12V 2x6 GPU cable included
    134,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEPH-032
    (0)
    Powerful ATX 3.1 power supply with 1,200 watts, highly efficient Platinum certification, cables with individually textured strands, fully modular cable management, including 12V 2x6 cable
    159,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NELI-039
    (0)
    Compact 850-watt power supply, with 80 PLUS Platinum efficiency, SFX form factor including ATX bracket, zero-RPM fan mode & modular design
    164,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEAS-039
    (0)
    80 PLUS Platinum power supply, 1,200 watts continuous power, modular, PCIe 5.1 & ATX 3.1
    439,90 €
    Incl. VAT, add. delivery costs
    Pre Order Expected restock at 17.11.2026
    NEBE-262
    (3)
    80 PLUS Gold power supply, 850 watts power, modular, PCIe 5.1 & ATX 3.1
    134,90 €
    Incl. VAT, add. delivery costs
    Pre Order Expected restock at 13.11.2026
    NEPH-022
    (0)
    Powerful ATX-3.1 750 watt power supply, efficient Gold certification, cables with individually textured strands, silent hybrid mode at the push of a button, fully modular cable management, including 12V-2x6 cable
    99,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NELI-026
    (1)
    Powerful SFX power supply with 750 watts, high efficiency: 80 PLUS Gold, modular sleeved cables, premium casing, ATX 3.1 compliant with native 12V 2x6-pin connector
    124,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEBE-252
    (1)
    High-efficiency ATX 3.1 power supply, supports PCIe 5.1, 80 PLUS Platinum, 1,000 watts rated power, 140mm fan, fully modular
    169,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEBE-265
    (2)
    80 PLUS Titanium efficiency, ATX 3.1 compliant, fully modular cable design, 135mm Silent Wings fan, PCIe 5.1, high-quality capacitors, designed for silent enthusiasts
    229,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEBE-251
    (0)
    Very efficient ATX 3.1 power supply, supports PCIe 5.1, 80 PLUS Gold, 1.000 Watt rated power, 120mm fan, non-modular
    139,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 76%
    SIAV-003
    (2)
    Flexible frame for power supplies to absorb disturbing vibrations
    Price reduced from 3,90 € to 0,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEBE-269
    (0)
    80 PLUS Gold power supply, 1,200 watts continuous output, modular, PCIe 5.1 & ATX 3.1
    214,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEBE-248
    (0)
    Very efficient ATX 3.1 power supply, supports PCIe 5.1, 80 PLUS Gold, 650 watts rated power, 120mm fan, non-modular
    89,90 €
    Incl. VAT, add. delivery costs
    Pre Order Expected restock at 13.11.2026
    NEPH-025
    (4)
    Powerful ATX-3.1 850 watt power supply, efficient Gold certification, cables with individually textured strands, silent hybrid mode, fully modular cable management, including 12V-2x6 cable
    109,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NELI-046
    (0)
    Powerful 1,000-watt power supply, with 80 PLUS Platinum efficiency, ATX 3.1 & PCIe 5.1 support, zero-RPM fan mode, modular
    149,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEBE-253
    (4)
    High-efficiency ATX 3.1 power supply, supports PCIe 5.1, 80 PLUS Platinum, 850 watts rated power, 140 mm fan, fully modular
    149,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEAS-016
    (1)
    High-end power supply, high efficiency with 80 PLUS Platinum, 83.3 A output (12 V), 120 mm fan, semi-passive mode possible, quiet operation, fully modular cable management, aluminium housing
    239,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NESE-179
    (0)
    Efficient ATX-3.1 power supply, supports PCIe 5.1, 80 PLUS Gold, 850 watts nominal power, 135mm fan with fluid dynamic bearing, OptiSink design
    149,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEBE-250
    (0)
    Very efficient ATX 3.1 power supply, supports PCIe 5.1, 80 PLUS Gold, 850 watts rated power, 120mm fan, non-modular
    114,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NESE-151
    (0)
    Compact SFX power supply with 650 W, 80 PLUS Platinum efficiency, strong single rail with 54 A, fully modular cable management, four PCIe connectors, 92 mm fan with 3 phases
    139,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 15%
    NELI-025
    (0)
    ATX 3.1 power supply with 750 watts, L-shaped design for dual-chamber cases, energy-efficient gold certification, individually sleeved connection cables, fully modular cable management
    Price reduced from 99,90 € to 84,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NELI-027
    (1)
    Powerful SFX power supply with 750 watts, high efficiency: 80 PLUS Gold, modular sleeved cables, high-quality casing, ATX 3.1 compliant with native 12V 2x6-pin connector
    124,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NELI-043
    (1)
    Powerful 850-watt power supply, with 80 PLUS Platinum efficiency, ATX 3.1 & PCIe 5.1 support, zero-RPM fan mode, modular
    124,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEAS-026
    (2)
    Black ATX 3.0 power supply, RGB lighting with Aura Sync, 1200 W rated power, with 80 PLUS Gold certification, ROG design, modular cable management, 135mm fan with semi-passive mode
    199,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEAS-044
    (0)
    80 PLUS Platinum power supply, 1,600 watts continuous power, modular, PCIe 5.1 & ATX 3.1
    429,90 €
    Incl. VAT, add. delivery costs
    Pre Order Expected restock at 17.11.2026
    NEBE-234
    (2)
    High-end ATX 3.1 power supply with 1,300 watts, highest efficiency with 80 PLUS Titanium, 260 A total power (12 V), single or multi-rail operation, quiet Silent-Wings fan, fully modular cable management, aluminium case in black.
    389,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEPH-023
    (0)
    Powerful ATX-3.1 750 watt power supply, efficient Gold certification, cables with individually textured strands, silent hybrid mode, fully modular cable management, including 12V-2x6 cable
    99,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 47%
    ZUAD-865
    (1)
    Dual/Multi-Power Supply Adapter by Kolink, for connecting two power supplies, parallel connection of an unlimited number of power supplies, compact dimensions for flexible placement, for power-hungry mining rigs or gaming PCs
    Price reduced from 1,90 € to 1,00 €
    Incl. VAT, add. delivery costs
    In Stock
    NEBE-255
    (1)
    Efficient ATX 3.1 power supply, supports PCIe 5.1, 80 PLUS Bronze, 450 watts rated power, 120 mm fan
    49,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NESE-152
    (2)
    Compact ATX power supply with 750 W, 80 PLUS Gold efficiency, strong single rail with 62 A, fully modular cable management, four PCIe connectors, 92 mm fan with 3 phases
    134,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NELI-037
    (0)
    750-watt power supply with 80 PLUS Bronze (85% efficiency), semi-modular design, integrated cable management, quiet 135mm HDB fan, PCIe 5.1 and ATX 3.1 compatibility
    74,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEMT-011
    (1)
    80 PLUS Gold power supply, 1,050 watts continuous power, modular, PCIe 5.1 & ATX 3.1
    109,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEBE-260
    (1)
    80 PLUS Gold power supply, 650 watts power, modular, PCIe 5.1 & ATX 3.1
    109,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEAS-041
    (0)
    80 PLUS Platinum power supply, 1,000 watts continuous power, modular, PCIe 5.1
    249,90 €
    Incl. VAT, add. delivery costs
    In Stock
    NEBE-264
    (0)
    80 PLUS Titanium efficiency, ATX 3.1 compliant, fully modular cable design, Silent Wings 135mm fan, PCIe 5.1, Japanese capacitors, ideal for high-end gaming PCs
    262,90 €
    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
    Pre Order Expected restock at 17.11.2026

    Do You Have the Right Power Supply Unit for Your PC?

    You've got your new high-end motherboard, the latest graphics card, and plenty of memory. But have you considered the appropriate power supply unit? Without the right power, your system won't run smoothly.

    Why the Right Power Supply Unit Is Crucial

    A power supply unit (PSU) provides all components of your PC with electricity. The more powerful your hardware, the more power you need. For most gaming PCs, PSUs between 500 and 800 watts are ideal. Absolute high-end systems with multiple GPUs or CPUs may require even more power.

    Efficiency and Certifications

    Pay attention to your PSU's efficiency. Models with 80 Plus certification are particularly efficient and save energy. The higher the certification (Bronze, Silver, Gold, Platinum, Titanium), the better.

    Cable Management for a Tidy Look

    With modular PSUs, you can easily omit unnecessary cables. This ensures better airflow and a clean look inside your case.

    Types of Power Supply Units

    PSUs differ in:

    • Form Factor: The most common are ATX, SFX, and SFX-L, with ATX being most frequently used in desktop PCs.
    • Cable Management: There are modular, semi-modular, and non-modular PSUs. With modular ones, you can remove unneeded cables, improving airflow and making installation easier.

    How to Determine Which Power Supply Unit You Need

    The choice of the right PSU depends on your system's specific requirements:

    1. Determine Power Requirements: Add up the power consumption of all components, especially the CPU and GPU. Online calculators can help estimate the total requirement.
    2. Future-Proofing: Plan for a buffer of about 20–30% to accommodate future upgrades and extend the PSU's lifespan.
    3. Check Connections: Ensure the PSU has enough and the correct connectors for your hardware, e.g., PCIe connectors for graphics cards.
    4. Consider Efficiency: A more efficient PSU produces less heat and saves on energy costs.

    Is a 600-Watt Power Supply Unit Sufficient?

    Whether a 600-watt PSU is sufficient depends on your individual system:

    • Mid-Range Systems: For many gaming PCs with a single mid-range graphics card and a current CPU, a 600-watt PSU is generally adequate.
    • High-End Systems: If you're using a high-end graphics card or multiple GPUs, a more powerful PSU may be necessary.
    • Future-Proofing: It's advisable to plan for some headroom to allow for future upgrades and reduce the PSU's load.

    Note that the efficiency and quality of the PSU also play a role. A high-quality 600-watt PSU may be more suitable than a less quality one with a higher nominal power.

    Current Trends in Power Supply Units 2025

    The latest PSUs support standards like ATX 3.0 and PCIe 5.0 to meet the high energy demands of modern graphics cards. Some manufacturers are also adopting innovative technologies like silicon carbide semiconductors to enhance efficiency and performance.

    Our Recommendations

    At Caseking, you'll find a wide selection of high-quality PSUs from top brands like Corsair, Phanteks, Lian Li, and Seasonic.

    With the right PSU, you'll get the most out of your gaming rig and ensure you never run out of power.