Case Power Supply Deals & Case Power Supplies for Sale

Compact ITX Flex form factor makes this a good match for small NAS or HTPC builds where a standard ATX supply just won't fit, and 500W covers the needs of most home server setups without extra bulk. Buy Now at Newegg

This one's aimed at technicians building or repairing industrial control systems where a reliable, no-frills power supply matters more than aesthetics. It's worth keeping on hand if you deal with equipment that runs continuously in less-than-ideal conditions. Buy Now at Newegg

Data center admins and server builders will want this on hand for redundancy setups, since the hot-swappable design lets you replace a failed unit without powering down the whole system. Buy Now at Newegg

Data center techs and server builders needing a reliable replacement or redundant power supply will find this useful, especially for maintaining uptime in rack-mounted systems. It's built to IBM's original specs, so compatibility with existing server hardware shouldn't be a concern. Buy Now at Newegg

Handy for replacing a failing power supply in a compact or proprietary-form-factor system where standard ATX units won't fit, or for anyone who needs a reliable spare without buying a full new unit. Buy Now at Newegg

Anyone managing rack-mounted Cisco switches will want a spare of this power supply on hand, since it swaps in directly for hardware failures without downtime for a full unit replacement. Buy Now at Newegg

Server admins building or upgrading redundant power setups will want this one, since the 1,400W capacity gives you headroom for high-draw configurations without needing a separate upgrade down the line. Buy Now at Newegg

Anyone maintaining or expanding a fleet of DL388 G9 servers will want a compatible power supply on hand for swaps and redundancy, and Newegg carries this 1,400W unit for exactly that purpose. Buy Now at Newegg

Anyone dealing with a dead or failing power supply on a compatible system will find this a straightforward swap, since it's built to match the original Bestec ATS-150 specs without any rewiring or case modifications. Buy Now at Newegg

Small form factor builds need PSUs that don't hog space, and this 250W SFX unit from Newegg fits compact cases where a standard ATX power supply simply won't. Buy Now at Newegg

This power supply suits anyone building or maintaining a server rig, since it's designed for continuous, high-load operation rather than casual desktop use. Newegg carries it as a standalone replacement part, making it a straightforward option if you need to swap out a failed unit without buying a whole new system. Buy Now at Newegg

Server admins keeping older Inspur rack systems running will want a matching PSU on hand, since sourcing OEM-spec power supplies for these models gets harder once they're out of production. Newegg carries this 550W unit if you need a direct replacement rather than a generic substitute. Buy Now at Newegg

Anyone replacing a failing PSU in a basic office build or media center should find this covers the essentials without paying for wattage you won't use, since 350W handles low-power setups like integrated graphics or single low-draw cards. Buy Now at Newegg

Data center techs replacing a failed server component will appreciate that this power supply matches OEM specs, so it slots in without reconfiguring the rest of the system. Buy Now at Newegg

Redundant power supplies matter for servers and NAS setups running mission-critical workloads, since this unit keeps things running even if one module fails, and the 80 Plus Gold rating cuts down on wasted energy over time. Buy Now at Newegg

Anyone running a Supermicro I610-G10 rig needs a spec-matched replacement, and this switching supply steps in without forcing you to modify the chassis or wiring. Buy Now at Newegg

Anyone building or repairing a slim rackmount system will want this on hand, since 1U cases need a flex-style supply to fit the low-profile chassis. It's a straightforward replacement part rather than an upgrade, so it suits server and NAS builders more than gaming rigs. Buy Now at Newegg

Golden Field's 700W unit is a straightforward option for mid-range gaming rigs or workstation builds that need reliable, steady power without paying extra for modular cabling or premium certifications. It's worth a look at Newegg if your build calls for solid wattage headroom without the higher price tag that comes with 80+ Gold or Platinum rated units. Buy Now at Newegg

Server admins keeping older Dell R320 or R420 rack units running will want a reliable replacement or backup PSU on hand, since matching the original wattage and connector layout matters more than chasing newer specs. Buy Now at Newegg