Case Power Supply Deals & Case Power Supplies for Sale

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

Anyone rebuilding or repairing a Dell T7500 will want to check this out, since a 1,100W supply matches the original spec and keeps dual-CPU or high-end GPU setups running without power issues. It's a straightforward fix for a workstation with a failed or underpowered unit, and Newegg carries it if you need one on hand. Buy Now at Newegg

Anyone running an older Dell XPS 410, 420, 430, 9200, or E520 whose original power supply has died will want a straightforward, exact-fit replacement instead of guessing at compatibility with a generic unit. Buy Now at Newegg

Anyone maintaining or repairing an older 5260 or 7460 all-in-one desktop will want this on hand, since finding a compatible power supply for those specific models gets harder as the systems age. Buy Now at Newegg

This fits older HP Compaq desktop towers that need a straightforward PSU swap without hunting down a proprietary part, since it's built to match the original specs and connectors. It's a practical fix if your current power supply has died or is on its way out and you want your system running again without replacing the whole machine. Buy Now at Newegg

Anyone building or upgrading a high-performance PC with power-hungry components like multiple GPUs will want the headroom this 1,200W supply provides, and Newegg's price makes it worth a look before buying elsewhere. Buy Now at Newegg

This power supply works if you need a direct replacement for a Dell Precision 5720 that's died or is on its way out, sparing you from hunting through third-party compatibility charts. Newegg carries it for those who'd rather match the original spec than gamble on a generic substitute. Buy Now at Newegg

Anyone building a mid-range desktop needs a reliable power supply, and this 650W unit gives you 80+ Bronze efficiency at a price point that fits most budget-to-mainstream builds without overspending on wattage you won't use. Buy Now at Newegg

Runs full voltage output at 130W, which suits budget PC builds or upgrades where you need reliable power without the higher cost of premium supplies. Buy Now at Newegg

Handy for anyone building or maintaining a server rig that needs reliable, high-wattage power without relying on a standard consumer PSU, since 800W gives you enough headroom for multiple drives and add-in cards. Buy Now at Newegg

Server admins running Dell PowerEdge R710 or T610 systems will want this on hand as a backup power source, since it keeps things running if the primary supply fails instead of taking the whole system down. Buy Now at Newegg

Small form factor builders will want to take note of this one, since SFX supplies that fit MATX and HTPC cases are harder to source than standard ATX units. It's a solid pick if your case's power supply bay is too tight for a full-size unit but you still need reliable wattage for everyday use. Buy Now at Newegg

This works well for anyone building a DIY power setup for ham radio, server racks, or high-current DC projects where 12V at 100A is the target output, since it's a repurposed server PSU rather than a consumer-grade unit. Newegg carries it as a practical, budget-friendly option compared to purpose-built bench supplies rated for similar output. Buy Now at Newegg

Data center admins and small server-room operators needing a dependable replacement power supply for aging Dell T5600 or T3600 workstations will find this one worth stocking, since it matches OEM specs without the wait for a Dell-branded part. Buy Now at Newegg

A solid pick for anyone building or upgrading a mid-to-high-end gaming rig, giving you enough headroom for a power-hungry GPU and CPU without maxing out the unit. Newegg's build quality here also holds up well for multi-year use, so you won't be shopping for a replacement anytime soon. Buy Now at Newegg

Anyone running an OptiPlex tower that's lost its original power supply or needs more wattage for added components can swap this in without hunting for a compatible aftermarket part. Newegg's listing matches Dell's exact form factor and connectors, so you skip the fit issues that come with generic replacements. Buy Now at Newegg

A straightforward pick for anyone running an HP ProLiant or compatible small form factor server that needs a replacement or spare power supply, particularly if the original unit has failed and you want an OEM part rather than a third-party alternative. Buy Now at Newegg

A dependable option if you're replacing a failed PSU in a Dell tower or building a compatible workstation setup, since the 8-pin connector is designed to match Dell's proprietary boards without needing an adapter. Buy Now at Newegg

Losing or damaging your original power adapter shouldn't mean replacing the whole motherboard setup, and this one gives Asus Prime board owners a straightforward replacement without hunting down a factory-exact part. It's a sensible pick for anyone rebuilding or troubleshooting a system where the original brick has gone missing or died. Buy Now at Newegg

Anyone maintaining industrial control servers will want a reliable spare on hand, and this 1U 350W unit fits that role without taking up extra rack space. Buy Now at Newegg

Setting up a rack-mounted server or compact SFF build, the 1U form factor here means it fits tight enclosures where a standard PSU won't, without sacrificing the reliability you need for continuous operation. Buy Now at Newegg

Server upgrades and repairs are the main use case here, so it's a sensible pick for anyone maintaining older PowerEdge 2650 hardware that needs a reliable replacement power supply. Newegg carries it if you're having trouble sourcing this specific part elsewhere. Buy Now at Newegg

Worth a look for anyone building a high-end gaming rig with power-hungry GPUs, since the fully modular design keeps cable clutter down and the platinum rating means less wasted energy as heat. Buy Now at Newegg

Anyone running an older desktop or server board with a failing or missing power supply can use this as a direct replacement for F250ED-00, L250PS-00, D250AD-00, or D250AD-00 models without hunting down discontinued OEM parts. Buy Now at Newegg

Swapping a dead power supply in an HP ProDesk 282, 280, or 600 G3/G4 mini tower is straightforward once you have the right replacement, and this one's built specifically for those models so you don't have to guess on compatibility. Newegg carries it for anyone looking to get an older office desktop running again instead of replacing the whole machine. Buy Now at Newegg

Small form-factor builds often struggle to find a compatible PSU, so this mini ATX unit suits compact cases and HTPC builds where a standard-sized power supply just won't fit. Buy Now at Newegg

Server upgrades and homelab builds needing reliable, efficient power delivery for the PowerEdge R430 will benefit from this 80 Plus Platinum-rated supply, since it's built to Dell's exact specs rather than a generic replacement. Newegg carries it if you're sourcing a direct replacement without going through Dell's own parts channel. Buy Now at Newegg

Anyone building or repairing a small server or workstation setup would find this useful, since it's a direct fit for systems designed around the DPS-220UB-1A spec rather than a generic replacement. Buy Now at Newegg