Case Power Supply Deals & Case Power Supplies for Sale

A solid pick for mid-range PC builds where you want reliable power delivery without overpaying, since 80 Plus Gold certification means the unit runs at 87-92% efficiency and wastes less energy as heat than Bronze or Silver-rated alternatives. Buy Now at Newegg

A 300W server-grade PSU is a reasonable pickup for home lab builds, NAS enclosures, or anyone repurposing server hardware who needs a reliable, standardized power source without sourcing it through enterprise channels. Buy Now at Newegg

A straightforward option for anyone looking to replace a failed or aging power supply in a desktop PC, particularly if your build runs modest hardware that doesn't demand a high-wattage unit. Buy Now at Newegg

A straightforward replacement part for anyone troubleshooting a dead or failing TV box power supply, saving you the cost of replacing the entire unit. Buy Now at Newegg

A direct-fit replacement for the P1S-5180V chassis, this 180W 1U supply suits anyone dealing with a failed unit in a small form factor server or workstation build where space and wattage specs are non-negotiable. Buy Now at Newegg

A 1,000W unit gives you enough headroom for high-end GPU and CPU pairings without worrying about the PSU becoming a bottleneck, and this one carries an 80 Plus Gold efficiency rating. At $100, that's $60 off the $160 list price at Newegg. Buy Now at Newegg

Useful if you're building or repairing electronics that need a stable 12V DC source, like LED strips, routers, or small appliances, without wiring up a separate adapter. Buy Now at Newegg

A direct replacement power supply for specific video recorder units, useful if you're dealing with a failed or failing PSU and need an exact spec match rather than a universal workaround. Buy Now at Newegg

A straightforward drop-in replacement for a Dell Small Form Factor desktop that's lost its original power supply, as long as you verify the wattage and connector compatibility with your specific model before ordering. Buy Now at Newegg

Swapping out a failing power supply in an Optiplex desktop is one of the more straightforward DIY repairs, and having a direct replacement that fits the existing form factor saves you from sourcing a generic unit that may not fit the case. Buy Now at Newegg

A high-wattage PSU suited for enthusiast PC builds running multiple GPUs or heavily overclocked systems where power headroom matters. Buy Now at Newegg

A high-wattage replacement or redundant power supply suited for HP servers or workstations that need a reliable 1,200W unit, particularly in data center or small business rack setups where downtime is costly. Buy Now at Newegg

Reliable enough for a mid-range gaming build, the GX650 gives you 650W with 80 Plus Bronze efficiency, which keeps heat and power waste low without paying for the higher-tier Gold or Platinum ratings. Buy Now at Newegg

A straightforward pick for anyone needing a reliable 12V 2.5A power supply to replace or supplement a compatible device, particularly useful when an original adapter has failed and you need a direct spec match. Buy Now at Newegg

A straightforward option for anyone building or repairing a budget desktop PC where power demands are modest — 300W covers basic office or home builds without discrete graphics cards. Buy Now at Newegg

A high-wattage server PSU like this suits homelab builders, data center operators, or anyone running power-hungry workloads across multiple drives, GPUs, or networking equipment. Keep in mind you'll likely need a breakout board to use it outside a server chassis. Buy Now at Newegg

A modular design means you only connect the cables you actually need, which keeps your build cleaner and airflow less cluttered — useful if you're working in a compact 1U or small form factor case where cable management is already a challenge. Buy Now at Newegg

Anyone building or upgrading a mid-to-high-end gaming PC will want the headroom this offers, especially with power-hungry graphics cards that can spike demand during load. Newegg has it at a price point that makes sense if you're already piecing together components and don't want to think twice about wattage. Buy Now at Newegg

This 80 Plus Gold rating means better energy efficiency and less wasted heat, worth the extra cost if you're building a system that'll run for years rather than opting for a bargain-bin supply. At 700W, it's suited for mid-range gaming rigs with a single graphics card rather than multi-GPU setups. Buy Now at Newegg