Newegg Case Power Supply Deals & Case Power Supplies for Sale

Anyone building a replacement or backup system will want to check that the wattage and connector layout match their existing setup before ordering, since this HU300EGS-00 unit is a specific OEM part rather than a universal fit. It's a practical option if you're repairing a prebuilt PC rather than assembling a custom rig from scratch. Buy Now at Newegg

Anyone building or upgrading a budget PC will want reliable, steady power without paying for wattage they don't need, and 500W covers most single-GPU setups without issue. Newegg's price on this Liteon unit makes it a sensible pick if you're trying to keep the power supply from eating into your build budget. Buy Now at Newegg

Anyone maintaining or repairing older industrial equipment or embedded systems will want this on hand, since matching the correct wattage and pin configuration matters more than finding a generic replacement. Newegg carries it if your setup calls for this exact 20-pin, 114W spec. Buy Now at Newegg

Server racks running an HP DL385G7, 580, or 585G7 need a matched replacement when the power supply fails, and this one is built specifically for those systems rather than a generic swap-in. Worth having on hand for IT teams managing older HP server fleets who want to avoid downtime from mismatched parts. Buy Now at Newegg

Anyone building or repairing a compact NAS setup will want a power supply matched to that specific form factor, and this 1U unit delivers 200W in a footprint designed to fit those tight enclosures without modification. Buy Now at Newegg

Suits anyone building a high-performance rig where clean, efficient power delivery matters, since Platinum-rated efficiency means less wasted heat and lower electricity costs over the life of the build. The fully modular design also means you only plug in the cables your components actually need, keeping the inside of your case tidier. Buy Now at Newegg

Suits anyone patching up an aging Dell OptiPlex desktop, since power supplies for these small form factor models aren't the easiest to track down when the original fails. Buy Now at Newegg

Golden Field's 500W supply suits budget builds and older office PCs that just need stable, basic power without any bells or whistles, not gaming rigs or systems with high-end graphics cards. Buy Now at Newegg

Anyone maintaining or replacing equipment that specs this exact power supply will want the R2Z-6400P-R on hand rather than hunting for a substitute, since switching supplies like this are often tied to specific industrial or server hardware requirements. Newegg carries it if your setup calls for this particular model. Buy Now at Newegg

Handy for older or budget desktop builds that don't need a lot of wattage, especially if you're replacing a failed PSU or putting together a basic office or home computer. Buy Now at Newegg

Older Lenovo desktop towers can be picky about replacement parts, so this M710s/M910s/V520-specific 180W supply is worth grabbing if your original unit died and you want a direct match rather than a generic substitute. Buy Now at Newegg

Anyone running a power-hungry GPU and multiple drives will want the extra headroom here, and the modular cables mean you're only running what your build actually needs. Buy Now at Newegg

Suits anyone building or repairing a server rack who needs a reliable, no-frills power supply rated for continuous workloads rather than typical desktop use. It's a straightforward replacement part if your current unit has failed or you're setting up additional server capacity. Buy Now at Newegg

Dell's 460W PSU suits anyone replacing a failed power supply in a compatible Dell tower rather than piecing together a generic aftermarket unit, since it's built to the exact specs and connector layout your system expects. Buy Now at Newegg

Gamers and PC builders assembling a mid-to-high-end rig will want the reliable, steady wattage this 800W PSU provides without paying for capacity you won't use. It's a sensible fit if you're running a single graphics card setup and want some headroom for future upgrades. Buy Now at Newegg

Anyone building or upgrading a mid-to-high-end PC will want a power supply with headroom to spare, and 750W gives you that buffer for a solid GPU and CPU pairing without maxing out your capacity. Buy Now at Newegg

Anyone building a compact 1U server setup will want the reliable, consistent power this supply provides without taking up unnecessary case space; it's a solid pick for tight rack configurations where every inch counts. Buy Now at Newegg

Anyone running a Dell 3647, 660S, V270S, or D06S chassis whose power supply has died will want an exact replacement rather than a generic swap, and this one's built to match those specific machines. Buy Now at Newegg

This 800W supply is worth a look if you're building a mid-to-high-end gaming rig, since the modular cables let you skip the clutter of unused wires inside your case. Newegg carries it at a price point that suits builders who want headroom for a future GPU upgrade without paying for capacity they don't yet need. Buy Now at Newegg