Case Power Supply Deals & Case Power Supplies for Sale

A high-wattage replacement or redundant power supply suited for HP servers or workstations that need a reliable 1,200W unit, particularly in data center or small business rack setups where downtime is costly. Buy Now at Newegg

A high-wattage PSU suited for enthusiast PC builds running multiple GPUs or heavily overclocked systems where power headroom matters. Buy Now at Newegg

A straightforward option for anyone building or repairing a budget desktop PC where power demands are modest — 300W covers basic office or home builds without discrete graphics cards. Buy Now at Newegg

A high-wattage server PSU like this suits homelab builders, data center operators, or anyone running power-hungry workloads across multiple drives, GPUs, or networking equipment. Keep in mind you'll likely need a breakout board to use it outside a server chassis. Buy Now at Newegg

A straightforward pick for anyone needing a reliable 12V 2.5A power supply to replace or supplement a compatible device, particularly useful when an original adapter has failed and you need a direct spec match. Buy Now at Newegg

A solid option if your desktop PC build calls for a reliable, no-frills 400W ATX power supply without paying for headroom you won't use — FSP is a well-regarded OEM manufacturer that supplies components to many name-brand system builders. Buy Now at Newegg

A high-wattage server PSU like this suits homelab builders, mining rigs, or anyone running power-hungry workloads that standard consumer units can't reliably handle. Buy Now at Newegg

A straightforward upgrade or replacement option for HP Z440 workstation owners who need to swap out a failing unit or want a genuine OEM power supply rather than a third-party alternative. Buy Now at Newegg

A straightforward pick for IT professionals or lab operators maintaining older HP ProLiant DL380 G4 servers that need a replacement or spare power supply unit. Buy Now at Newegg

A straightforward upgrade or replacement option for anyone running a Dell OptiPlex 7460 All-in-One whose original power supply has failed or is showing signs of wear. Buy Now at Newegg

A direct replacement for anyone running a Dell OptiPlex 780, 790, 990, 7010, or 9010 desktop who needs a new power supply without hunting for compatibility information. Buy Now at Newegg

A high-wattage switching power supply like this suits server builds, workstations, or any setup drawing serious continuous power loads where a standard consumer PSU would fall short. Buy Now at Newegg

A compact 1U Flex ATX power supply rated at 250W with 80 Plus Bronze efficiency, which suits small form factor builds, HTPCs, or industrial systems where space is tight and a standard ATX unit simply won't fit. Buy Now at Newegg

A straightforward pick for anyone building or repairing a budget desktop PC who needs a reliable power supply without spending much on a component that mostly just needs to work. Buy Now at Newegg

Older desktop builds that use AT-style power supplies (rather than the modern ATX standard) are rare to find parts for, so this is a practical option if you're restoring or maintaining a vintage PC from the late 1980s or 1990s. Buy Now at Newegg

A solid pick if your PC build has a high-power GPU or multiple drives and you want a reliable unit without paying a premium for modular cables you may not need anyway. Buy Now at Newegg

A practical pick if you're maintaining or upgrading Oracle Sun X3-2 or X4170 M3 servers and need a compatible replacement PSU without sourcing directly from Oracle. Buy Now at Newegg

A direct replacement for aging Dell Optiplex GX620 and PowerEdge SC440 units that need a new power supply, this is a fairly specific part that's worth bookmarking if you're maintaining older Dell hardware. Buy Now at Newegg

Redundant power supplies are mainly relevant for servers or workstations where downtime from a single PSU failure isn't acceptable, so this is aimed at IT environments or home lab setups running critical workloads. The 3U form factor means you'll want to confirm it fits your rack chassis before ordering. Buy Now at Newegg