Case Power Supply Deals & Case Power Supplies for Sale

A high-wattage redundant power supply built for IBM Flex System chassis, so it's primarily useful if you're running or expanding an existing Flex System environment and need a replacement or additional PSU to meet your power budget. Buy Now at Newegg

A straightforward pick if your Dell OptiPlex or Precision desktop's power supply has failed and you want a direct replacement without the guesswork of compatibility research — this unit is built specifically for the 3020, 9020, T20, T30, T1700, and 3620 models. Buy Now at Newegg

A direct replacement or upgrade option for anyone running a U25 or U45 system that needs more headroom for power-hungry components, with 1,000W covering most high-end GPU and CPU combinations without issue. Buy Now at Newegg

A straightforward pick for anyone building or repairing an industrial PC, embedded system, or point-of-sale terminal that needs a reliable, no-frills power supply rated for continuous operation. Buy Now at Newegg

A solid pick for DIY electronics projects, LED strip setups, or any application where you need stable 5V DC power at higher amperage without building your own supply. Buy Now at Newegg

A 1,000W power supply gives you enough headroom for high-end GPU and CPU combinations, plus any future upgrades you might add down the line. Newegg has this one listed, so it's worth checking if you're building or upgrading a demanding gaming or workstation rig. Buy Now at Newegg

A compact 300W power supply built for Mini-ITX cases, which makes it a practical pick if you're building or upgrading a small form factor PC and need a unit that actually fits the space. Buy Now at Newegg

A compact 1U form factor makes this a practical pick for rack-mounted servers or small form factor builds where standard ATX units won't fit, and the 80 Plus Gold rating means it runs efficiently enough to keep heat and power draw manageable in tight spaces. Buy Now at Newegg

A switching power supply at this wattage and voltage is typically used for network equipment, industrial hardware, or custom builds that require a stable 54V DC input, so it's a fairly specialized component rather than a general-purpose buy. Buy Now at Newegg

Newegg has the Netra T5220 T5440 X4450 DC Power Supply listed for those running legacy Sun/Oracle server hardware that requires a DC power source rather than standard AC. A fairly niche component, but if you're maintaining one of these older enterprise systems and need a replacement, finding OEM-compatible parts can be a challenge. Buy Now at Newegg

A semi-modular layout means you only connect the cables you actually need, which cuts down on clutter inside your case compared to a fully cabled unit. At 750W with an 80+ Bronze efficiency rating, it covers most mid-range gaming builds without overspending on headroom you won't use. Buy Now at Newegg

A replacement power supply worth bookmarking if your M4600, M4650, M4200f, or M4900c workstation is running on a failing or dead unit and you'd rather swap the PSU than replace the whole machine. Buy Now at Newegg

Replacement power supply units for server-grade hardware like the Fujitsu M10-1 can be difficult to source, so this is a practical find if you're maintaining or repairing one of these systems and need a compatible spare. Buy Now at Newegg

A workstation power supply swap like this is mostly relevant if you're replacing a failed unit in a Dell T5820, T7820, or T7920 tower, or upgrading to handle a more power-hungry GPU or component load. Buy Now at Newegg

A high-wattage server PSU like this is typically what you'd buy when building or upgrading a homelab, mining rig, or high-draw workstation where a standard consumer power supply falls short on headroom. Buy Now at Newegg

A direct replacement for Dell PowerEdge R530 and T330 servers that need a working or spare 350W power supply, useful if you're maintaining aging rack or tower hardware and want to avoid sourcing from less reliable channels. Buy Now at Newegg

A solid pick if your PC build or workstation needs a high-wattage PSU and you want a name that's been supplying OEM systems for decades. Newegg has it listed, so worth checking the specs against your system's power requirements before buying. Buy Now at Newegg

A straightforward option for DIY builds, server setups, or any project requiring a stable 48V DC power source at a reasonable wattage. Buy Now at Newegg

A fully modular design means you only connect the cables your build actually needs, which keeps airflow cleaner and cable management less of a headache. At 1,050W with 80 Plus Gold efficiency, this suits high-end builds running power-hungry GPUs or anyone planning to upgrade components down the line. Buy Now at Newegg