Case Power Supply Deals & Case Power Supplies for Sale

Data center techs and homelab builders running dense server setups will want this for its reliability at high wattage without taking up extra space in the rack. Buy Now at Newegg

Data centers and home lab builds running high-density servers benefit most from this, since it's engineered for consistent 650W output under sustained load rather than the intermittent draw typical of desktop PSUs. Buy Now at Newegg

This slim FLEX 1U form factor is built for compact or rackmount PC builds where a standard ATX power supply won't fit, and the 80Plus Bronze rating keeps energy waste down without pushing the price into premium territory. Buy Now at Newegg

This power supply is a direct fit for Dell PowerEdge R730, R630, R530, and T630 servers, so it's worth checking if you're replacing a failed unit or adding redundancy rather than sourcing a generic third-party alternative. Buy Now at Newegg

Anyone running a multi-GPU mining rig or high-draw workstation build needs stable, sufficient wattage, and this power supply covers that headroom without requiring multiple separate units. Buy Now at Newegg

Small form factor builders will want this one, since the SFX size fits compact cases where a standard ATX supply won't, and 750W with 80 Plus Gold certification covers most mid-to-high-end builds without wasting power as heat. Buy Now at Newegg

Anyone maintaining or upgrading a Dell Optiplex SFF desktop will want a compatible replacement on hand, since power supply failures are common and this exact form factor won't fit standard ATX cases. Buy Now at Newegg

Runs on Z200, Z210, Z220, and 4000/4300 series desktops, so it's a straightforward pick if you're replacing a failed factory unit rather than trying to squeeze in extra wattage for upgrades. Buy Now at Newegg

Server builders and homelab enthusiasts running demanding workloads will want the reliable 620W output this power supply provides, especially in rackmount setups where consistent power delivery matters most. Buy Now at Newegg

Anyone building a budget or backup PC will find this a solid pick for basic power needs without paying for wattage you don't actually use. Buy Now at Newegg

Data center admins and IT techs maintaining older Inspur server racks will want this on hand as a direct-fit replacement before a failing unit takes down a whole system. Newegg carries it if your usual parts supplier doesn't stock this specific model number. Buy Now at Newegg

Suits anyone rebuilding or upgrading a desktop who needs a reliable 670W supply to handle a new graphics card or extra drives without maxing out their system's power headroom. Buy Now at Newegg

Server admins keeping older ProLiant DL380 G5 units running will want a reliable replacement PSU on hand, since this exact model is getting harder to find as the hardware ages. Buy Now at Newegg

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

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

For anyone building or upgrading a PC, a reliable power supply keeps your components running steadily without the risk of sudden shutdowns or damage from voltage spikes. FSP's units are known for solid efficiency ratings and consistent performance, making them a sensible pick if you want dependable power delivery without paying a premium brand markup. Buy Now at Newegg

Anyone building or upgrading a high-wattage rig with multiple GPUs will appreciate the 1,250W headroom, and the fully modular cabling keeps case airflow tidy since you only plug in what you need. Buy Now at Newegg

This power supply is a direct fit for HP's 600/800 G3 and G4 desktop lineup, so it's a practical option if your machine's original PSU is failing and you want an exact match rather than a universal replacement. 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

Anyone maintaining industrial control servers will want a reliable spare on hand, and this 1U 350W unit fits that role without taking up extra rack space. Buy Now at Newegg

Setting up a rack-mounted server or compact SFF build, the 1U form factor here means it fits tight enclosures where a standard PSU won't, without sacrificing the reliability you need for continuous operation. Buy Now at Newegg

Server upgrades and repairs are the main use case here, so it's a sensible pick for anyone maintaining older PowerEdge 2650 hardware that needs a reliable replacement power supply. Newegg carries it if you're having trouble sourcing this specific part elsewhere. Buy Now at Newegg

Worth a look for anyone building a high-end gaming rig with power-hungry GPUs, since the fully modular design keeps cable clutter down and the platinum rating means less wasted energy as heat. Buy Now at Newegg

Anyone running an older desktop or server board with a failing or missing power supply can use this as a direct replacement for F250ED-00, L250PS-00, D250AD-00, or D250AD-00 models without hunting down discontinued OEM parts. Buy Now at Newegg

Swapping a dead power supply in an HP ProDesk 282, 280, or 600 G3/G4 mini tower is straightforward once you have the right replacement, and this one's built specifically for those models so you don't have to guess on compatibility. Newegg carries it for anyone looking to get an older office desktop running again instead of replacing the whole machine. Buy Now at Newegg