Newegg Case Power Supply Deals & Case Power Supplies for Sale

Small form factor PCs need a power supply built to their exact dimensions, and this one is made specifically to fit HP Pro and Elite desktop cases without any modification. Worth keeping on hand if you're repairing or upgrading one of these compact office machines and don't want to hunt for a compatible replacement. Buy Now at Newegg

Anyone rebuilding or replacing a stock power supply in a Dell Vostro or Inspiron slim tower needs the TFX form factor specifically, since standard ATX units won't fit the case. This FSP unit matches the original Dell spec, making it a straightforward swap without modifying the chassis or hunting down a discontinued OEM part. Buy Now at Newegg

Handy for anyone troubleshooting a dead Prodesk 600 G5 or building out a spare parts stock, since this replaces the exact 180W SFF unit HP originally installed rather than a generic substitute. Buy Now at Newegg

Server admins keeping older Dell R320 or R420 rack units running will want this on hand as a direct replacement power supply, especially if you manage multiple units and want a spare ready before one fails. Buy Now at Newegg

A straightforward pick if your desktop's power supply has died or you're building out a system that needs 180W of reliable output, since it's built to Dell's own specs for a proper fit. Check your existing unit's connector layout before ordering to make sure it matches your setup. Buy Now at Newegg

Server closets running HP DL360 G4 units benefit most here, since matching the original power specs keeps the system stable instead of risking compatibility issues with a generic replacement. Newegg carries this as a straightforward swap-in option for anyone maintaining older HP server hardware. Buy Now at Newegg

Anyone replacing a dead power supply in a Dell Optiplex small form factor desktop needs this exact wattage and connector setup, since off-brand universal supplies often won't fit the proprietary case layout. Newegg carries the F79TD as a direct match for those specific SFF models. Buy Now at Newegg

Handy for hobbyists who want to power up a spare ATX PSU on the bench without hooking it back into a full computer build, useful for testing fans, LED strips, or other 12V accessories. Buy Now at Newegg

Anyone building or upgrading a higher-end PC will appreciate the 850W of consistent power here, giving you headroom for demanding GPUs and CPUs without maxing out your supply. It's a solid pick if you're running multiple drives or a power-hungry graphics card and want some buffer built into your system. Buy Now at Newegg

This power supply suits anyone whose HP 280 G2 unit needs a replacement or backup PSU, since it's built to the exact wattage and pin configuration the system requires rather than a generic substitute. Matching OEM specs this closely helps avoid compatibility headaches down the road. Buy Now at Newegg

Server admins keeping older PowerEdge T300 towers running will want a reliable replacement on hand, since matching OEM specs exactly avoids the compatibility headaches that come with generic power supplies. Buy Now at Newegg

Builders running power-hungry rigs with multiple high-end GPUs will appreciate the 1,200W headroom, and the fully modular design means you only connect the cables your setup actually needs. Buy Now at Newegg

Anyone running Chia farming rigs needs steady, high-wattage power without the noise or inefficiency of a repurposed gaming PSU, and this one's built specifically for that kind of sustained, round-the-clock load. Buy Now at Newegg

Powers multiple GPUs at once without the strain a standard PC power supply would struggle to handle, so it suits anyone running a dedicated mining rig or multi-card setup rather than a typical desktop build. Buy Now at Newegg

Steady, reliable power delivery matters most when you're running a gaming rig with a dedicated graphics card, and 700W gives you enough headroom for mid-to-high-end builds without maxing out the supply. Buy Now at Newegg

Server rooms and workstation builds needing reliable redundant power will get the most out of this, especially if you're replacing a failed unit in an existing Dell tower or rack setup. Newegg's listing makes it easy to match the exact model number your system requires. Buy Now at Newegg

This power supply is a direct fit for specific Dell Precision workstation towers, making it a straightforward option if you're replacing a failed unit or upgrading capacity on one of those models rather than hunting down a generic ATX substitute. Buy Now at Newegg

Worth grabbing if your Dell desktop's power supply has died or is acting up, since this Bestec replacement is built to match Dell's original specs without you having to track down a discontinued part. Buy Now at Newegg

Handy for anyone building a budget office PC or replacing a failed supply in an older Dell tower, since it's built to spec for those systems rather than a generic universal fit. Newegg's price point makes it a reasonable option if you just need a reliable, low-wattage replacement without extra bells and whistles. Buy Now at Newegg