Case Power Supply Deals & Case Power Supplies for Sale

Anyone building or repairing a small-form-factor server setup will want a reliable power source that fits the compact chassis without extra modification, and this Supermicro unit is built specifically for that. Newegg carries it as a straightforward replacement part, which matters if you're trying to match OEM specs rather than hunt for a generic substitute. Buy Now at Newegg

Handles mid-to-high-end builds with a single GPU without needing to size up, and the 750W headroom gives you some breathing room if you add components later. Newegg has it at a price that makes it a reasonable pick for anyone assembling a new desktop from scratch. Buy Now at Newegg

Older 6-pin/4-pin power connectors like this aren't compatible with newer motherboard standards, so this is worth grabbing if you're repairing or upgrading a Lenovo 510S, v530s, or Qitian M420 desktop and need an exact factory-spec replacement rather than an adapter workaround. Buy Now at Newegg

Data center techs and server-rebuild projects needing a reliable 2U replacement will find this fits standard server chassis without hunting down proprietary parts, and 600W covers most single-CPU configurations comfortably. 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

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 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

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

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

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 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

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 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

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

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