Case Power Supply Deals & Case Power Supplies for Sale

A Flex ATX form factor makes this power supply one of the few options available for slim or compact ITX builds where standard SFX and ATX units won't physically fit, and the 80 Plus Platinum rating means it runs efficiently enough to keep heat and noise down in tight enclosures. Buy Now at Newegg

A solid option if you're building a home lab, NAS, or custom mining rig on a budget, since server PSUs are typically more efficient and durable than consumer units at the same wattage. Buy Now at Newegg

A high-wattage power supply unit built for Aruba 6400 series switches, so this is a targeted buy for network admins or IT teams managing that specific hardware. At $2,622, that's $36 off the $2,658 list price. Buy Now at Newegg

A small form factor PSU swap that suits compact PC builders or anyone replacing a failed unit in a slim desktop or small chassis system. Buy Now at Newegg

A direct replacement for older Dell Optiplex desktops that need a new power supply, and it covers a fairly wide range of models including the 330, 380, 521, 620, 745, and 755. Buy Now at Newegg

A solid option if your PowerEdge R320 or R420 server needs a replacement PSU, since OEM-compatible power supplies for rack servers can be difficult to source at a reasonable price through standard retail channels. Buy Now at Newegg

Useful if you're building or expanding a home lab, small server rack, or network appliance setup and need a reliable power supply rated for continuous server-grade loads rather than a standard desktop PSU. Buy Now at Newegg

A straightforward pick for network administrators running Aruba X372 series switches who need a replacement or redundant power supply unit, particularly at a lower price than sourcing through traditional VAR channels. Buy Now at Newegg

A straightforward add-on for network admins looking to expand their HP 5510 switch with additional high-speed QSFP+ uplink ports without replacing existing hardware. Buy Now at Newegg

Designed for multi-GPU mining rigs or any high-draw build that needs more headroom than a standard ATX unit can provide, this 2,000W supply handles the kind of sustained loads that would push a typical consumer PSU to its limits. Buy Now at Newegg

A straightforward pick for anyone maintaining or upgrading an IBM P6 595 server, as sourcing compatible power supplies for older enterprise hardware can be tricky and having a reliable replacement on hand matters when uptime is critical. Buy Now at Newegg

A reliable spare or direct replacement if you're running a Dell PowerEdge T410 tower server and need a compatible 580W PSU without sourcing through enterprise channels. Buy Now at Newegg

A straightforward upgrade or replacement option for anyone running a Dell Precision T5810, T7810, or T7910 workstation who needs more headroom for power-hungry components like high-end GPUs or additional drives. Buy Now at Newegg

A straightforward option for anyone maintaining or repairing a Dell PowerEdge R410 server who needs a direct replacement power supply rather than sourcing a used or third-party unit. Buy Now at Newegg

A solid pick if you're building or repairing a small form factor PC and need a compact ATX12V power supply without overpaying for wattage you won't use. Buy Now at Newegg

A direct replacement for the Dell T320 tower server, so if your unit's PSU has failed or you need a spare on hand, this is the part you're looking for. Buy Now at Newegg

Redundant power supplies are typically found in servers and workstations where downtime isn't an option, so this one suits a home lab setup or small business build where you want a backup power unit ready to take over if the primary fails. Buy Now at Newegg

A straightforward pick for anyone replacing a failed PSU in a prebuilt desktop or building a low-to-mid power system that doesn't need anything beyond 360W. Buy Now at Newegg

Rated for 1200W with an 80 Plus Platinum efficiency rating, this PSU suits high-end builds running power-hungry GPUs or multi-drive setups where headroom and efficiency matter. Newegg has it at a price worth checking if you're already in the market for a full-tower build. Buy Now at Newegg