Case Power Supply Deals & Case Power Supplies for Sale

Fully modular wiring means you only connect the cables your build actually needs, which keeps things cleaner and makes assembly easier, and at $125 that's $25 off the $150 list price for an 80 Plus Gold-rated 850W unit. Buy Now at Newegg

Modular cabling keeps your build cleaner by letting you run only the cables you actually need, and 1,000W gives you headroom for high-end GPUs and multi-drive setups without worrying about power limits. At $144, that's $16 off the $160 list price for an 80 Plus Gold-rated unit. Buy Now at Newegg

A server PSU repurposed for a home lab, mining rig, or high-draw DIY build can save you money over a standard ATX unit, and the DPS-800AB-16K delivers 800W on a proven server-grade platform. Worth noting that these units typically require a pinout modification or breakout board to run outside a server chassis. Buy Now at Newegg

A solid option if your PC build needs a mid-range wattage supply and you want a unit from a brand with a history in the enthusiast PC market. Buy Now at Newegg

A compact switching power supply that suits hobbyists, makers, or engineers who need a reliable 5V/3A DC source for microcontrollers, Raspberry Pi setups, or small electronics projects. Buy Now at Newegg

A compact 75W unit designed to power DVR or low-draw desktop builds that only need SATA connections, so it suits home security setups or small media systems where a full-size PSU would be overkill. Buy Now at Newegg

A basic 250W ATX unit that suits older or low-power desktop builds where you're replacing a failed PSU and don't need anything beyond standard output. Buy Now at Newegg

Designed as a direct replacement for specific MT-series desktop power supplies, this is a practical pick if your unit has failed and you want a like-for-like swap without sourcing a generic alternative. Buy Now at Newegg

A solid pick if your PC build or workstation requires a high-wattage power supply and you want a unit from a manufacturer that supplies OEM systems rather than the consumer market. Delta's switching supplies are typically found in servers and industrial equipment, so this is more of a utilitarian option than a typical retail PSU. Buy Now at Newegg

A solid pick if your PC build or repair project requires a reliable replacement ATX power supply, and at 220W it's sized for basic desktop configurations like HTPCs or older office machines. Buy Now at Newegg

A fully modular design means you only connect the cables your build actually needs, which keeps things tidy and improves airflow — useful for anyone doing a high-wattage build with a mid-to-high-end GPU where cable management matters. Buy Now at Newegg

Designed for workstations, home servers, or high-draw PC builds where a reliable, continuous-duty power supply matters more than a modular cable system or quiet operation. Buy Now at Newegg

Designed for multi-GPU mining rigs or high-draw workstation builds that need more headroom than a standard ATX supply can provide, a 2,000W unit lets you run several power-hungry components without pushing the supply to its limits. Buy Now at Newegg

A hot-plug power supply means you can swap it out without powering down the server, which is the key reason data center operators and IT admins running HPE rack servers would look at this. Buy Now at Newegg

A modular design means you only connect the cables your build actually needs, which keeps airflow cleaner and cable management simpler — useful whether you're doing a first build or upgrading an older system. At 750W with an 80 Plus Gold efficiency rating, it covers most mid-range to high-end gaming builds without overpaying for headroom you won't use. Buy Now at Newegg

A straightforward pick for anyone repairing or upgrading a Dell R230 rack server, since sourcing OEM replacement power supplies for aging server hardware can be tricky and this keeps you within Dell's original spec. Buy Now at Newegg

A server power supply replacement worth knowing about if you're running or building out a Lenovo rack server and need a reliable spare or upgrade to handle heavier workloads. Buy Now at Newegg

Designed for multi-GPU mining rigs or other high-draw builds that need sustained wattage well beyond what standard desktop PSUs can deliver, this 2,400W unit gives you the headroom to run demanding hardware without tripping over power limits. Buy Now at Newegg

Rack-mounted industrial systems running Emacs or Advantech hardware sometimes need a direct replacement power supply rather than a workaround, and this 150W 1U unit is built specifically for that compatibility. Newegg has it listed if you're sourcing parts for those platforms. Buy Now at Newegg