Case Power Supply Deals & Case Power Supplies for Sale

Anyone building or repairing industrial equipment on a budget will want this one, since it delivers steady 400W output without the premium price tag of specialty brands. Newegg has it in stock for straightforward replacement jobs where reliability matters more than extra features. Buy Now at Newegg

Building or upgrading a mid-range PC rig is where this fits best, since 750W with semi-modular cabling covers most single-GPU builds without extra cable clutter. At $43, that's $42 (about 49%) off the $85 list price. Buy Now at Amazon

A straightforward option if your HP server needs a replacement PSU and you want to stick with a wattage that suits low-to-mid-range workloads without overpaying for headroom you won't use. Buy Now at Newegg

Designed for industrial and automation setups, this 24V DIN rail-mountable power supply from Phoenix Contact is a reliable choice if your control cabinet or PLC system needs a compact, dedicated power source. Buy Now at Newegg

Newegg has this replacement power supply listed for those who need to revive or repair a Dell OptiPlex 7010 or 9010 SFF desktop rather than replacing the whole unit, which can save a fair amount over buying a newer machine. Buy Now at Newegg

A replacement power supply board for the BenQ RL2755 monitor, useful if your display has stopped powering on and you'd rather repair it than replace the whole unit. Buy Now at Newegg

A reliable pick if your current power supply has failed and you need a straightforward replacement without a lot of extra features or overhead capacity. Buy Now at Newegg

A high-wattage redundant power supply swap or server build is where this fits, giving you 2,000W of Platinum-rated efficiency in a standard form factor that works with compatible Dell server chassis. Buy Now at Newegg

A server power supply replacement for anyone maintaining or refurbishing HP ProLiant DL380 G5 hardware, where sourcing OEM-compatible parts can be tricky. Buy Now at Newegg

A direct replacement for the Dell Optiplex 3020, 7020, and 9020 SFF towers, which use a proprietary form factor that standard ATX power supplies won't fit — useful if your unit is shutting down unexpectedly or the original PSU has failed. Buy Now at Newegg

A direct replacement option if your Dell OptiPlex 3060, 5060, or similar tower's original PSU has failed and you'd rather swap in an OEM-matched unit than source a generic alternative. Buy Now at Newegg

A modular cable design means you only connect the cables your build actually needs, which keeps things tidy in compact or small form factor cases where space is tight. Buy Now at Newegg

A straightforward pick for electronics hobbyists or DIYers who need a reliable isolated 12V power source for bench projects, small appliances, or custom builds where clean, regulated output matters. Buy Now at Newegg

A solid option if you're building or repairing a system on a budget and need a reliable replacement PSU without spending much. Buy Now at Newegg

Handy for bench-testing a power supply unit outside of a case, letting you verify whether a PSU is functional without needing a motherboard connected to it. Buy Now at Newegg

A spare or replacement AC power supply for Juniper SSG-series firewalls, useful if you're maintaining aging network hardware and need a backup unit or a direct swap for a failed component. Buy Now at Newegg

A straightforward replacement for Lenovo desktop users who need a compatible 300W power supply without sourcing a generic unit that may not fit the original mounting points or connectors. Buy Now at Newegg

A straightforward pick for anyone building or repairing a budget desktop PC who needs a reliable replacement PSU without paying for wattage they won't use. The 500W output covers most mid-range builds running integrated or entry-level discrete graphics. Buy Now at Newegg

A direct replacement if your OptiPlex 3020, 7020, or 9020 is running on a failing or underpowered PSU, and sourcing OEM Dell parts can otherwise mean paying a premium through Dell directly. Buy Now at Newegg