Case Power Supply Deals & Case Power Supplies for Sale

Anyone running a HP Pro 400 G9R SFF and dealing with a failing or underpowered stock supply will want a direct replacement like this rather than hunting for a compatible aftermarket unit. Buy Now at Newegg

Anyone running a home lab or server rack needs reliable power delivery, and this 800W unit gives you the headroom for multiple drives and high-draw components without tripping into overload territory. Buy Now at Newegg

Anyone repairing or upgrading a compact Lenovo desktop like the M70s, M80t, or P340 will want a supply built to that exact spec, since these small-form-factor units don't accept standard ATX power supplies. Buy Now at Newegg

Server rack builders needing reliable, compact power will find this 150W 1U supply suits industrial or embedded systems where space is tight and consistent output matters. Buy Now at Newegg

Sudden desktop shutdowns or a failure to power on at all usually point to a dying supply, and this replacement is built specifically for the HP Pavilion HPE Elite h8 1440T, so you won't be stuck guessing about compatibility. Buy Now at Newegg

The 180W power supply is built for HP ProDesk small form factor towers, so it's a straightforward pick if your original unit died and you need a compatible replacement rather than a universal fit. Newegg carries it for owners who'd rather swap in an exact match than troubleshoot power issues with a generic unit. Buy Now at Newegg

Anyone repairing or upgrading an older Dell OptiPlex 360 or 380 desktop will want a direct-fit replacement like this on hand, since sourcing the correct wattage and connector layout for these specific models can be trickier than buying a generic PSU. Buy Now at Newegg

Anyone maintaining Dell PowerVault storage arrays will want a reliable spare on hand, and this power supply covers several compatible models so you're not stuck hunting for the exact match during a failure. Buy Now at Newegg

Newegg's DPS-550AB-11A suits anyone building or repairing a desktop that needs a reliable 550W supply without paying for wattage you'll never use. Buy Now at Newegg

Restarting a dead Gateway GT3084M or GT3226M often comes down to a failed power supply, so this replacement is worth grabbing before you assume the whole machine is toast. Buy Now at Newegg

Suits anyone whose desktop's power supply died or is due for a refresh, since matching Dell's exact spec avoids the compatibility guesswork of a generic replacement. Buy Now at Newegg

Anyone repairing or replacing a failed Dell power supply will want to check the exact model numbers here first, since compatibility comes down to matching those codes precisely rather than wattage alone. It's a straightforward fix for older Dell desktop towers that need this specific replacement part. Buy Now at Newegg

Small businesses running dense server racks will appreciate the compact 1U form factor here, since it delivers reliable power without eating into valuable rack space. It's a practical pick if your setup demands consistent output in tight quarters rather than raw wattage headroom. Buy Now at Newegg

Multiple GPUs pulling heavy sustained loads need stable, high-capacity power, and this 2,000W unit is built for mining rigs rather than a typical gaming build. It's a practical pick if you're running several cards at once and don't want to juggle multiple standard PSUs. Buy Now at Newegg

Anyone replacing a failed OEM power supply in an HP desktop will want a direct fit rather than a universal unit, and this one matches the original specs without requiring case or wiring modifications. Newegg carries it if your local shop comes up empty. Buy Now at Newegg

Worth a look if you're building or maintaining a 1U rackmount system and need a compact, reliable power supply that fits the tight clearance without sacrificing output. Newegg carries it for those setting up server rooms or industrial equipment where standard ATX supplies simply won't fit. Buy Now at Newegg

Data centers and IT pros managing storage arrays will want this as a direct replacement when a disk array cabinet's power supply fails, keeping your existing setup running without a full hardware swap. Buy Now at Newegg

Server administrators maintaining older Sun hardware will want this as a direct replacement option, since sourcing OEM power supplies for these specific legacy systems gets harder every year. Buy Now at Newegg

Older Dell Dimension towers are notorious for proprietary power supply quirks, so this replacement suits anyone keeping a 4600 or 4700 running rather than replacing the whole machine. Newegg carries it if you'd rather buy a direct fit than gamble on a generic ATX swap. Buy Now at Newegg

Builders running high-draw setups with dual GPUs or overclocked systems benefit most from the 1,250W capacity and fully modular cabling for cleaner routing. Amazon has it for $140, which is $80 (36%) off the $220 list price. Buy Now at Amazon

Anyone repairing or upgrading an HP ProDesk 600 G1 desktop will want a power supply that matches the original specs exactly, so replacing a failing unit is straightforward without hunting down compatibility info elsewhere. Buy Now at Newegg

Refurbished or replacement builds on the HP Z4 G4 lean on this power supply, so it's worth having on hand if your workstation's original unit fails and you want a direct fit instead of hunting for a generic substitute. Buy Now at Newegg

Small-form-factor PC builders trying to squeeze a decent power supply into a cramped ITX case will appreciate this one, since 220W is enough headroom for a modest build without the bulk of a standard ATX unit. It's a practical pick for compact home theater PCs or basic office builds rather than gaming rigs with dedicated graphics cards. Buy Now at Newegg

A steady power supply matters most when you're running rigs for extended stretches, and 2,000W gives you enough headroom to handle multiple GPUs without tripping under load. Newegg carries this option for anyone building or upgrading a mining setup that's outgrown a standard consumer PSU. Buy Now at Newegg

Anyone running a Dell Precision T3500 who needs a direct replacement power supply will want this, since matching the OEM specs avoids the fit and compatibility headaches that come with generic PSUs. Buy Now at Newegg

Workstation owners running Dell's T5810 tower will want a direct replacement on hand, especially if they're pairing the machine with power-hungry GPUs or extra drives that push past the stock supply's limits. Buy Now at Newegg

Worth keeping on hand as a replacement for small form factor HP desktops, since these compact PSUs aren't interchangeable with standard ATX units and can be tricky to source once your original fails. Newegg has it listed if you need one that matches OEM specs without hunting through third-party listings. Buy Now at Newegg

Server racks and enterprise setups needing reliable backup power will get the most out of this rectifier module, since IBM builds these to handle consistent, heavy-duty loads without the failure rate you'd risk from a generic replacement part. Buy Now at Newegg