Case Power Supply Deals & Case Power Supplies for Sale

Redundant power supplies use two units in tandem so that if one fails, the other takes over without any downtime, which makes this a practical pick for servers, NAS builds, or any system where unexpected shutdowns would cause real problems. Buy Now at Newegg

A straightforward replacement option for anyone building or repairing a desktop PC who needs a reliable mid-range power supply without spending on features they don't need. Buy Now at Newegg

A high-wattage replacement or redundant power supply for IBM Power P740 servers, so it's relevant if you're maintaining or expanding that specific enterprise hardware in your data center. Buy Now at Newegg

The Hydro Ti PRO carries an 80 Plus Titanium rating, which is the highest efficiency tier available and means less wasted energy as heat compared to Gold or Platinum units, relevant if your PC runs under heavy load for long periods. At $245, it's $15 off the $260 list price. Buy Now at Newegg

A solid pick if your setup requires a dedicated industrial-grade ATX power supply, particularly for automation systems, CNC machines, or other control hardware that needs stable, regulated power output. Buy Now at Newegg

A straightforward upgrade option for older or compact desktop builds where the original PSU has failed and a direct replacement is needed without modifying the case. Buy Now at Newegg

Replacement power supplies for specific server or workstation models can be frustratingly hard to source, so if you're maintaining older hardware that uses the D10-320P2A, D3201A0, PS-4321-9HA, or CFH0320AWWA units, this gives you a direct compatibility match without guessing. Buy Now at Newegg

Designed for crypto mining rigs that need a high-wattage, rack-mountable power solution, this 2,500W unit runs on 12V and fits a standard 2U server form factor, which keeps your build organized if you're running multiple GPUs. Buy Now at Newegg

A high-wattage PSU like this is aimed at enthusiasts running power-hungry builds, think dual GPUs, heavily overclocked CPUs, or workstation rigs that need headroom to spare. Buy Now at Newegg

A Flex ATX form factor makes this power supply one of the few options available for slim or compact ITX builds where standard SFX and ATX units won't physically fit, and the 80 Plus Platinum rating means it runs efficiently enough to keep heat and noise down in tight enclosures. Buy Now at Newegg

A solid option if your PowerEdge R320 or R420 server needs a replacement PSU, since OEM-compatible power supplies for rack servers can be difficult to source at a reasonable price through standard retail channels. Buy Now at Newegg

A direct replacement for older Dell Optiplex desktops that need a new power supply, and it covers a fairly wide range of models including the 330, 380, 521, 620, 745, and 755. Buy Now at Newegg

A solid option if you're building a home lab, NAS, or custom mining rig on a budget, since server PSUs are typically more efficient and durable than consumer units at the same wattage. Buy Now at Newegg

A small form factor PSU swap that suits compact PC builders or anyone replacing a failed unit in a slim desktop or small chassis system. Buy Now at Newegg

A high-wattage power supply unit built for Aruba 6400 series switches, so this is a targeted buy for network admins or IT teams managing that specific hardware. At $2,622, that's $36 off the $2,658 list price. Buy Now at Newegg

A straightforward drop-in replacement if your Vostro or Inspiron desktop has a failing or underpowered TFX-format PSU, and the 250W output covers the stock requirements for most slim-form-factor Dell builds in that lineup. Buy Now at Newegg

Designed as a direct replacement for the power supply units found in HP Pro and Elite small form factor desktops, this is a straightforward option if your original PSU has failed and you want a compatible swap without hunting for specs. Buy Now at Newegg

A straightforward pick for anyone running or upgrading a mid-to-high-end desktop build, the 750W output gives you enough headroom for a discrete GPU and modern CPU without oversizing the unit. Buy Now at Newegg

A straightforward pick for anyone building or repairing a 1U rackmount server who needs a reliable PSU that fits the compact form factor without stepping up to a full-size unit. Buy Now at Newegg