Newegg Case Power Supply Deals & Case Power Supplies for Sale

For anyone managing HPE networking gear, this power supply is a straightforward way to keep your switches running with the manufacturer-specified wattage they need, without hunting down a compatible third-party option. Buy Now at Newegg

Anyone running a Dell OptiPlex 3050 Micro whose original power brick died or went missing can swap this one in without hunting down Dell's own replacement part. Buy Now at Newegg

Replacing a dead power supply is often cheaper than replacing the whole tower, and this one's built to match the exact specs of these Gateway desktop models so you don't run into compatibility issues. Buy Now at Newegg

Handles higher-wattage builds with room to spare, so it suits anyone running a power-hungry GPU or planning to upgrade down the line, and the Gold efficiency rating keeps your electricity costs down over time. Buy Now at Newegg

For anyone building or upgrading a mid-range PC, this power supply's 80Plus Gold rating means less wasted energy and lower heat output compared to standard units, without the premium price of higher-wattage models. Buy Now at Newegg

Semi-modular design lets you skip the cables you don't need, making cable management easier for anyone building a mid-range PC without the higher cost of a fully modular unit. Buy Now at Newegg

Data center and networking pros running EX9214 switches will want a spare or replacement AC power supply on hand to keep redundancy intact and avoid downtime if a unit fails. It's a straightforward match for anyone already invested in Juniper's EX9214 chassis lineup rather than a general-purpose accessory. Buy Now at Newegg

For anyone building or repairing a compact 1U rackmount system, this power supply fits the tight space constraints while still delivering the 400W needed to keep a low-profile server running reliably. Buy Now at Newegg

For anyone building or replacing a slim server setup, this 1U form factor delivers 600W in a compact footprint that fits tight rack spaces without sacrificing capacity. Buy Now at Newegg

Gamers and PC builders running high-end GPUs will appreciate the 850W of headroom, and the RGB lighting adds a nice touch if your build has a windowed side panel. Buy Now at Newegg

Worth a look if you're building or repairing a system that calls for a 360W supply, especially budget desktops that don't need extra wattage headroom for upgrades. Buy Now at Newegg

This power supply suits gamers or PC builders running high-end setups with power-hungry GPUs that need serious headroom, and at $250, that's $200 (44%) off the $450 list price. Buy Now at Newegg

This power supply replacement suits Dell XPS 8900 owners dealing with a failing or dead unit, since generic PSUs don't always match Dell's proprietary connectors and dimensions. Newegg carries it as a direct-fit option, so you can swap it in without modifying cables or the case. Buy Now at Newegg

Anyone replacing a failing power supply or building out a budget desktop will find this handy, since it delivers a stable 180W at a size that fits into HP's compact tower cases without modification. Buy Now at Newegg

Handy for anyone whose 280 G3 or 400 G5 desktop's original power supply has failed, since replacements matching these specific model lines can be tricky to track down. Buy Now at Newegg

A solid pick if you're maintaining or building out a fleet of Dell R440 servers and need a genuine replacement power supply rather than a generic substitute. Newegg carries it for those times when a failed unit needs swapping out without waiting on OEM lead times. Buy Now at Newegg

Refurbished server builds or NAS setups that need reliable, redundant-style power will get solid use out of this 605W supply, especially if you're replacing a failed unit in existing rack hardware. Newegg's listing makes it easy to match this Delta model to compatible server chassis before you buy. Buy Now at Newegg

This power supply suits anyone repairing or upgrading a ProDesk 400 G2 or 550 G2 without hunting down a compatible OEM part, since it's built to match those specific tower configurations. Newegg carries it as a straightforward replacement option if your existing unit has failed or you're restoring an older office desktop to working condition. Buy Now at Newegg

This power supply suits anyone repairing or upgrading an older Optiplex GX280 tower where the original unit has failed, since it's built to the exact specs Dell used rather than a generic replacement. Newegg carries it for those hard-to-find legacy parts that most retailers no longer stock. Buy Now at Newegg