Newegg Case Power Supply Deals & Case Power Supplies for Sale

Solid pick if your build stays under 600W and you want the efficiency and reliability that comes with 80 Plus Gold certification without paying for capacity you won't use. Buy Now at Newegg

Anyone building or upgrading a mid-to-high-end desktop, especially with a dedicated graphics card, will want the extra headroom this 750W supply provides without pushing the unit to its limits. It's a practical baseline for gaming rigs or workstations where you'd rather not calculate wattage down to the last watt. Buy Now at Newegg

Anyone building a multi-GPU rig for mining or heavy computing work needs enough dedicated PCIe connectors to power six cards without daisy-chaining adapters, and that's exactly what this supply handles. Buy Now at Newegg

Miners running multiple GPUs will want the extra headroom here, since 1,800W and 150A output can handle rigs that would trip a standard PSU. Buy Now at Newegg

Anyone running a multi-GPU mining or crypto rig needs steady, high-capacity power, and the fully modular design lets you connect only the cables you need without a mess of unused wires cluttering your setup. Buy Now at Newegg

Network admins upgrading a switch stack to support PoE+ devices like access points and cameras will want this on hand, since it delivers the extra power those endpoints need without a separate injector. Newegg has it in stock for anyone building out or replacing capacity in a Juniper setup. Buy Now at Newegg

This power supply suits anyone running Juniper switches or routers who needs failover protection if the primary power source drops, keeping network gear online without interruption. It's a straightforward pick for IT setups where downtime isn't an option. Buy Now at Newegg

Suits anyone running a home lab or small business server rack that needs reliable, high-efficiency power without the enterprise price tag, since the platinum rating keeps waste heat and energy costs down under heavy loads. Buy Now at Newegg

Server admins keeping older Sun X4170M3 hardware running will want this on hand as a spare, since sourcing OEM power supplies for legacy systems gets harder once the original stock dries up. Buy Now at Newegg

If you're building or upgrading a high-performance rig with power-hungry components like multiple GPUs, this gives you the headroom to run everything reliably without worrying about tripping your system under load. Buy Now at Newegg

Anyone building or repairing a 2U rack server needs a power supply that fits the exact form factor, and this 350W unit gives you a straightforward replacement option without hunting through mismatched specs. Buy Now at Newegg

Data center techs maintaining Proliant DL360 or DL380 Gen9 servers need a reliable replacement or redundant power source, and this flex slot unit slots in without any compatibility guesswork. Buy Now at Newegg

Anyone running a home server or NAS build will appreciate the 80 Plus Platinum rating here, since it keeps energy waste (and heat) down during long stretches of continuous use. It's a solid pick if you're repurposing server-grade hardware and want reliable, efficient power without the consumer PSU markup. Buy Now at Newegg

A breakout board turns a repurposed server PSU into a usable bench supply, so this setup suits anyone running high-wattage builds, mining rigs, or DIY electronics projects who needs steady, high-amperage power without buying a traditional ATX unit. It's a practical option if you're comfortable with basic wiring, since server supplies don't come with the plug-and-play connectors you'd get from a standard consumer PSU. Buy Now at Newegg

Server upgraders and IT technicians maintaining X3550/X3650 M4 or M5 systems need a reliable spare or replacement supply, and this one's built to match Lenovo's exact specs for those chassis. Buy Now at Newegg

Anyone building or upgrading a mid-to-high-end desktop, especially with a power-hungry GPU, will want the headroom this 850W supply offers so the system isn't running near its limit under load. Buy Now at Newegg

Anyone building or maintaining a server rack needs reliable, high-wattage power backing multiple drives and components, and this 1,200W supply gives you the headroom to handle demanding configurations without maxing out capacity. Buy Now at Newegg

Anyone maintaining or expanding a Huawei CloudEngine 6800 switch setup will want a reliable 350W supply on hand, and Newegg's stock gives you a straightforward source for a redundant or replacement unit without hunting down enterprise networking gear elsewhere. Buy Now at Newegg

Handy for anyone building or upgrading a desktop who needs a dependable replacement PSU without paying for wattage you won't use, especially in a compact or budget rig. Buy Now at Newegg