Case Power Supply Deals & Case Power Supplies for Sale

Anyone repairing or upgrading a 1U server chassis will want a compatible replacement on hand, and this 180W supply matches the OEM specs without the wait for a manufacturer part. Buy Now at Newegg

Anyone building or repairing a server rack will want a reliable replacement PSU on hand, and the 750W capacity covers most standard server workloads without needing a bigger unit. Newegg carries this one for those who need an exact fit replacement rather than a generic aftermarket substitute. Buy Now at Newegg

Anyone building or upgrading a mid-range gaming PC needs a reliable power supply, and this 650W option gives you enough headroom for a solid CPU and GPU pairing without overspending on wattage you won't use. Buy Now at Newegg

Anyone repairing or upgrading an HP Pavilion 550-103la will want a power supply that matches the original specs exactly, and Newegg carries this one as a direct replacement so you're not guessing on compatibility. Buy Now at Newegg

Anyone maintaining or repairing older desktop systems will want a reliable ATX replacement like this on hand, since finding compatible power supplies for legacy setups gets harder every year. Newegg carries this as a straightforward drop-in option if your current unit fails and you're not looking to rebuild the whole machine. Buy Now at Newegg

Server admins running critical workloads will want this for the redundancy alone, since a second power supply keeps things running if one fails instead of taking your whole PowerEdge box down with it. Buy Now at Newegg

Anyone running a power-hungry desktop build or replacing a failing PSU in a Dell system will want the specs to match exactly, and this 240W unit is built to Dell's factory specifications for a proper fit. Newegg carries it for those needing a straightforward, compatible replacement without hunting down a used part. Buy Now at Newegg

Anyone building a budget office PC or basic media server without a dedicated graphics card will find enough headroom here without paying for wattage you'll never use. Buy Now at Newegg

Small form factor builders needing reliable power without a bulky ATX unit will find this fits SFX cases while still delivering steady wattage for compact systems. Buy Now at Newegg

Server refresh projects benefit most here, since this power supply is built specifically for Dell PowerEdge R450, R650, and R750 systems rather than being a generic fit. Newegg carries it if you need a compatible replacement without gambling on cross-brand compatibility. Buy Now at Newegg

Suits anyone whose Pavilion 510-P050ST won't power on or keeps shutting down unexpectedly, since a failing power supply is a common culprit. This is an exact-fit replacement, so you won't need to worry about compatibility or modifying your case. Buy Now at Newegg

Server room techs and IT departments keeping older Dell PowerEdge R805 systems running will want this on hand as a replacement, since matching OEM power supplies aren't always easy to track down once a system ages out of mainstream support. Buy Now at Newegg

Datacenter admins running Cisco UCS blade server chassis will want this as a direct replacement or spare, since matching the exact power supply model keeps redundancy and cooling specs consistent across the chassis. Buy Now at Newegg

Data center techs maintaining Juniper switch infrastructure will want this on hand as a direct replacement or hot-swappable spare, since matching the exact power supply model helps avoid compatibility headaches. Newegg carries the JPSU-400W-AC for those needing genuine Juniper hardware rather than a third-party equivalent. Buy Now at Newegg

A fully modular PSU means you only connect the cables your build actually needs, which keeps airflow cleaner and cable management simpler — useful whether you're building a high-end gaming rig or a workstation that draws serious wattage. The 1000W output with 80 Plus Platinum efficiency rating puts it at the upper end of what most desktop builds would ever need, and at $290 it's at list price with no current discount. Buy Now at Best Buy

This dock is worth a look if your gaming rig has an Alienware-compatible graphics card that's outgrown your current power supply's capacity. It's built specifically for Dell's ecosystem, so double-check compatibility with your setup before buying from Newegg. Buy Now at Newegg

Anyone repairing or building an ATX-style system will want the dual voltage rails here, since the 5V/6A output covers standard low-power components while the 12V and -12V rails handle the rest. Buy Now at Newegg

This power supply suits anyone maintaining an older OptiPlex 980 tower who needs a direct replacement without hunting down a discontinued part, and Newegg's stock makes it easy to find one that fits without guesswork on specs. Buy Now at Newegg

Server admins swapping out a failed power supply or building redundancy into a rack setup will want this on hand, since matching Supermicro's exact PSU spec avoids compatibility headaches with existing chassis. Buy Now at Newegg