Newegg Case Power Supply Deals & Case Power Supplies for Sale

This replacement supply suits anyone whose eMachines T6532, T6534, T6536, T6524, T6528, or T6540 desktop has stopped powering on due to a failing PSU, saving you from tracking down an obsolete original part. Newegg carries this direct-fit option for those specific models, so you can swap it in without modifying your case or wiring. Buy Now at Newegg

Suits anyone maintaining or upgrading a Lenovo RD450 rack server, since a matched replacement power supply keeps redundancy intact rather than mixing components. Worth having on hand for IT teams who need a spare ready to swap in before a failing unit takes a server down. Buy Now at Newegg

Server hardware repairs and upgrades call for exact part matches, so this replacement makes sense if you're maintaining an RD650 and need a spare or swap without hunting down a full refurbished chassis. Buy Now at Newegg

Modular cabling makes this a solid pick if your build prioritizes clean airflow and easy cable management, and the 80 Plus Gold rating means decent efficiency without paying platinum-tier prices for it. Buy Now at Newegg

Suited for anyone building or upgrading a workstation that needs steady, efficient power without excess heat or wasted energy — the 80 Plus Platinum rating means it runs efficiently even under sustained loads. Newegg has it priced for buyers who want server-grade reliability without paying for capacity they don't need. Buy Now at Newegg

Network administrators managing Aruba 6400 switch stacks will want this for reliable power redundancy, and the C16 inlet adapter is included for compatible data center setups; at $2649, it's only $9 off the $2658 list price, so don't expect a steep discount here. Buy Now at Newegg

Anyone repairing or upgrading an HP Z210 or Z220 CMT workstation needs a power supply that matches the original spec exactly, and this replacement is built to that fit without modification. It's a practical pick if your current unit is failing and you want to avoid compatibility guesswork. Buy Now at Newegg

Suits anyone whose HP Envy 700 H8 desktop is refusing to power on or shutting off unexpectedly, since a failing stock PSU is a common culprit and this is built to match the original specs for a straightforward swap. Buy Now at Newegg

This power supply suits anyone whose HP Pavilion Elite desktop is refusing to boot or shutting down unexpectedly due to a failing PSU, offering a direct replacement without needing to hunt down compatibility specs yourself. It's a straightforward fix for an aging machine you'd rather repair than replace. Buy Now at Newegg

Data center admins running redundant power setups will want this for keeping switch uptime intact if one supply fails, and it's a straightforward swap for anyone maintaining Rackswitch G7000 hardware without needing a full system replacement. Buy Now at Newegg

Two solid PSUs in one box makes sense if you're building or upgrading multiple machines at once, and the 80Plus Gold rating means you're not wasting electricity or generating extra heat compared to cheaper units. Buy Now at Newegg

Older tower-style build with limited clearance and modest power needs? This one delivers reliable, no-frills wattage without the bulk of a modern ATX unit, which suits budget rigs or basic office upgrades over gaming setups. Buy Now at Newegg

This 525W power supply is built specifically for the PowerEdge T3400 and T410, so it's a direct fit if you're replacing a failed unit rather than hunting through generic options. Newegg carries it as a straightforward compatible replacement, which saves you the guesswork of matching specs on a third-party part. Buy Now at Newegg

This 1U form factor is built for slim rackmount cases where a standard ATX power supply won't fit, so it suits anyone building a compact server or NAS setup. The 80-Plus certification and active PFC also mean you're getting decent efficiency and stable power delivery despite the small footprint. Buy Now at Newegg

Handy to have on hand if a desktop or peripheral's original power supply dies and you need a Dell-compatible replacement without hunting down the exact OEM part elsewhere. Buy Now at Newegg

Anyone maintaining older Sun X4500 server hardware will want a reliable power supply on hand, since these systems are long out of production and replacement parts aren't easy to source. Newegg carries this one at 1,500W, matching the original spec so you don't have to hunt down a compatible substitute. Buy Now at Newegg

Server admins keeping older DL360 or DL380 G6/G7/G8 units running will want this on hand as a direct replacement when a power supply fails, since matching HP hardware exactly saves you compatibility headaches. Newegg carries it for those maintaining legacy server fleets without upgrading the whole chassis. Buy Now at Newegg

Data center techs and homelab builders swapping out a failed unit will want this, since it slots into compatible Dell PowerEdge servers without needing a full replacement rig. It's also worth grabbing as a spare if you're running redundant power configurations and want a backup on hand. Buy Now at Newegg

Keeps your Dell desktop running when the original power supply dies or can't handle an upgraded component, and it's built to match factory specs so installation is straightforward. Worth grabbing if you're troubleshooting random shutdowns or need a reliable replacement without hunting down aftermarket compatibility issues. Buy Now at Newegg