Newegg Case Power Supply Deals & Case Power Supplies for Sale

Anyone building a mid-to-high-end gaming rig needs a power supply with enough headroom for a hungry GPU, and 1,200W gives you room to upgrade components later without worrying about running out of capacity. Buy Now at Newegg

This 150W power supply is built specifically for the ThinkCentre M90z all-in-one desktop, so it's a straightforward pick if your original unit has failed and you need an exact replacement rather than a universal fit. Newegg carries it for those dealing with a dead or unreliable PSU on this particular model. Buy Now at Newegg

Anyone building or upgrading a desktop needs a reliable PSU, and this one's a solid pick if you want stable power delivery without paying for extras you don't need. Buy Now at Newegg

Anyone building or upgrading a PC that needs reliable, consistent power delivery should take a look at this one, especially if you're running components sensitive to voltage fluctuations. It's a solid pick for a build where you want steady output without paying for features you won't use. Buy Now at Newegg

Anyone running an older HP ProLiant DL380G5 server as a replacement part or backup will want this on hand, since finding a compatible 1,000W unit gets harder as the hardware ages. Newegg carries it as a straightforward way to keep aging server hardware running without hunting through third-party listings of uncertain quality. Buy Now at Newegg

This power supply is built specifically for HP Z230 workstations, so it's the one to grab if you need an exact replacement rather than a universal PSU that requires modding. Anyone running that machine for CAD, video editing, or other demanding workloads will want the correct wattage and connector layout HP originally spec'd for it. Buy Now at Newegg

Anyone building or repairing a desktop, running a home lab, or powering DIY electronics projects needs a stable DC source like this, since it converts standard AC input into consistent 300W output without the guesswork of rigging up a workaround. Buy Now at Newegg

Data center operators managing server rack setups will want this for its ATC160W spec, which handles power delivery for demanding server hardware without needing a custom solution. Newegg carries this one if you're building or maintaining server infrastructure and need a reliable, purpose-built supply rather than a general-use unit. Buy Now at Newegg

Data center admins and homelab builders running redundant server setups will want this on hand, since 750W supplies like this are typically sourced as exact replacements rather than general-purpose parts. Check Newegg's listing for compatibility with your specific server chassis before ordering. Buy Now at Newegg

Anyone running an HP Z440 workstation and dealing with a failing or underpowered stock supply will want this as a direct replacement rather than hunting for a generic compatible unit. Buy Now at Newegg

Older desktops or budget rebuilds where you just need a reliable, no-frills PSU without paying for wattage you'll never use. Buy Now at Newegg

Redundant power supplies like this one are worth having if you're running a server that can't afford downtime, since a second unit keeps things running if one fails. At 550W, it suits small to mid-sized server builds rather than heavy enterprise loads, and Newegg's price makes it a reasonable add-on for a home lab or small business setup. Buy Now at Newegg

Server rack owners running a Dell PowerEdge R730, R630, R530, or T630 will want this on hand for replacing a failed unit or adding redundancy without waiting on OEM lead times. Buy Now at Newegg

Anyone running a Lenovo M70a or M90a Gen3 desktop that's lost power or is due for a replacement will want to match specs exactly, and this unit is built specifically for those two models. It's a straightforward fix if your original PSU has failed or you're setting up a spare machine. Buy Now at Newegg

Anyone maintaining or repairing an older Dell GX100, GX110, or GX200 desktop will want this on hand, since original power supplies for these systems are getting harder to source. It's a straightforward replacement part rather than an upgrade, so it suits repair jobs where matching the original specs matters more than adding new features. Buy Now at Newegg

Newegg sells the Dell OptiPlex XE2 SFF 315W Power Supply Unit for anyone whose small form factor system needs a factory-spec replacement rather than a generic swap-in. It's built to Dell's exact specifications, so fit and connector compatibility won't be a guessing game like they can be with third-party units. Buy Now at Newegg

Reliable pick for a budget or mid-range build where you don't need extra wattage headroom for high-end graphics cards, just steady, consistent power for everyday components. Buy Now at Newegg

Data center admins and server builders needing failover protection will appreciate the redundant design, which keeps systems running if one power supply fails, and the 80 Plus Gold rating helps keep energy costs down during continuous operation. Buy Now at Newegg

Datacenter admins replacing or scaling out HP Gen9 server hardware will want this on hand, since matching the OEM power supply spec keeps redundancy and airflow design intact. Newegg carries it for situations where sourcing directly from HP isn't practical or fast enough. Buy Now at Newegg