DealNews - Best Case Power Supply Deals & Case Power Supplies for Sale

FSP 200W 1U Power Supply for $302

Sun, 23 Aug 2026 00:10:45 -0400

Server closets and compact rackmount builds tend to have tight power needs, and this FSP 200W 1U unit is sized specifically for slim, space-constrained cases rather than standard towers. Newegg carries it if your setup calls for a low-profile supply without sacrificing reliability. Buy Now at Newegg

Features

200W power output
Small 1U form factor
Model: FSP200-50LC

Dell Inspiron Mini Tower Power Supply Replacement for $80

Sun, 23 Aug 2026 00:09:41 -0400

Handy for anyone whose Inspiron desktop won't power on or is showing signs of a failing PSU, since a compatible replacement gets you back up and running without the cost of a new tower. Buy Now at Newegg

Features

Replacement power supply for Dell Inspiron 537 540 545 546
Compatible with Mini Tower upgrades
Compact 0.1 weight design
Grey color finish

HP G9 1,500W Power Supply for $266

Sun, 23 Aug 2026 00:09:38 -0400

Server rebuilds and workstation upgrades needing serious wattage will find this HP G9 1,500W unit worth a look, especially if you're running multiple GPUs or high-draw components that standard consumer supplies can't handle. Newegg carries it for those who need enterprise-grade reliability without sourcing from a server parts specialist. Buy Now at Newegg

Features

1500W power capacity
Model: 684529-001
Model: 704604-001
Model: 684532-B21
Model: 684530-201

350W Power Supply for Proliant ML310e G8 for $202

Sun, 23 Aug 2026 00:09:32 -0400

Server upgrades and repairs are exactly what this power supply is built for, since it's designed specifically to match the ML310e G8's specs rather than a generic replacement. Anyone maintaining older HP Proliant hardware will want a part that fits without modification, and this one comes from Newegg. Buy Now at Newegg

Features

350W power supply capacity
Compatible with Proliant ML310e G8
Model: 671310-001

PP-300V AT Power Supply for $79

Sun, 23 Aug 2026 00:09:25 -0400

Anyone building or upgrading a PC needs a dependable power supply, and this one gives you steady voltage delivery without overpaying for features you won't use in a basic setup. Buy Now at Newegg

Features

115V or 230V AC adjustable input voltage
Compatible with PP-300V AT power supply units
Designed for industrial PC power applications
Reliable switch-mode power delivery
Model: PP-300V

600W Power Supply for B2500 for $365.20

Sun, 23 Aug 2026 00:08:47 -0400

A solid pick if your B2500 build needs reliable power without paying for wattage you won't use, especially in a compact or budget-focused setup. It's a straightforward replacement or backup option for anyone running standard components rather than a high-end multi-GPU rig. Buy Now at Newegg

Features

600W power output
Model: HP-W600GC3

Cougar GX1050V3 1,050W Power Supply for $107 + free shipping

Sat, 22 Aug 2026 01:01:48 -0400

A solid pick for anyone building a high-performance rig with power-hungry GPUs, since 1,050W gives you enough headroom for multi-drive setups or future upgrades without maxing out the supply. Buy Now at Amazon

Features

80-PLUS Gold efficiency rating
Ultra-quiet 140mm temperature-controlled fan
Advanced modular cable design
Supports latest ATX12V and EPS standards
Multi-GPU configuration support

HP DL380 G6 and DL385 1,225W Power Supply for $336

Fri, 21 Aug 2026 00:21:53 -0400

Data centers and home lab builders running DL380 G6 or DL385 servers will want a reliable replacement power supply on hand, since matching the exact wattage and server generation keeps everything running without compatibility headaches. Newegg carries this HP unit for those who need a direct swap rather than a generic substitute. Buy Now at Newegg

Features

1225W power output
H-P DL380 G6 compatibility
H-P DL385 compatibility
Model: 437573-B21

Dell 290W OptiPlex Power Supply for $90

Fri, 21 Aug 2026 00:21:45 -0400

Anyone running an OptiPlex tower that's lost its original power supply or needs more wattage for added components can swap this in without hunting for a compatible aftermarket part. Newegg's listing matches Dell's exact form factor and connectors, so you skip the fit issues that come with generic replacements. Buy Now at Newegg

Features

290W total power output
Compatible with OptiPlex 3020, 7020, 9020 MT
Supports L290EM-00, D290EM-00, F290EM-00 replacements
Designed for mini tower form factors
Model: L290EM-00

Supermicro PWS-351-1H 350W 1U Server Power Supply for $79

Fri, 21 Aug 2026 00:21:31 -0400

Server admins swapping out a failed unit or building a redundant setup will want this on hand, since matching the exact model keeps your 1U setup fitting and running as it should. Buy Now at Newegg

Features

350W power output
ATX form factor
24-pin connector
1U compact size
Model: PWS-351-1H

HP Z2 G4 Workstation 650W Power Supply for $247

Fri, 21 Aug 2026 00:21:15 -0400

Anyone running a power-hungry workstation setup knows a failing PSU can take the whole system down with it, so this replacement is worth having on hand if you own an HP Z2 G4 and want to avoid downtime. It's built specifically for that model, so you won't need to guess about compatibility with connectors or wattage. Buy Now at Newegg

Features

650W power capacity
Model: L36049-003

PWS-1K03A-1R 1,000W Server Redundant Power Supply Module for $429

Fri, 21 Aug 2026 00:20:26 -0400

This power supply module suits anyone running or building out a server rack that needs redundancy, since it lets the system keep running even if one unit fails. It's a straightforward pick for IT setups where downtime isn't an option and 1,000W of capacity matches typical enterprise server demands. Buy Now at Newegg

Features

1000W total power output
Redundant power supply architecture
Model: PWS-1K03A-1R

Liteon 350W Small 1U Power Supply for $219

Fri, 21 Aug 2026 00:19:13 -0400

Server rack builders and small-form-factor PC projects tend to need exactly this kind of compact power supply, since the slim 1U profile fits cases where a standard ATX unit simply won't. Newegg's got it if you're piecing together a home server or NAS build and need output that matches your space constraints. Buy Now at Newegg

Features

350W power output
1U form factor
Model: HS-5351-05

Advantech 250W ATX Power Supply for $300

Fri, 21 Aug 2026 00:19:00 -0400

Industrial and embedded computing setups benefit most from this one, since Advantech builds it for stable, continuous operation rather than typical desktop use. Newegg carries it if you need a reliable replacement for equipment that runs around the clock. Buy Now at Newegg

Features

250W power supply capacity
ATX form factor compatibility
Compatible with FSP250-60ATV, FSP250-60GTV, PS8-250ATX-ZE
Model: FSP250-60ATV

Fujitsu 800W Power Supply for R920 and M720 for $724

Fri, 21 Aug 2026 00:18:57 -0400

Anyone running or refurbishing an R920 or M720 server should keep one of these on hand, since matching OEM power supplies can be tough to track down once the originals fail. Buy Now at Newegg

Features

800W power output
Model: S26113-E568-V70-01

Dell 290W L290EM-01 Desktop Power Supply for $50

Fri, 21 Aug 2026 00:18:42 -0400

Dell's L290EM-01 is a factory replacement for select Dell desktop towers, so it's worth grabbing if your original power supply died and you want a matching part instead of a generic swap. Newegg carries it for those doing their own repair, which saves you a trip to a repair shop for what's usually a straightforward install. Buy Now at Newegg

Features

290W power supply output
Compatible with 3020 9020 MT desktops
Features 8+4 pin power connector
Replaces L290EM-01 H290AM-00 units
Model: L290EM-01

RGEEK 200W DC to ATX Power Supply for $78

Fri, 21 Aug 2026 00:18:28 -0400

Runs your ATX build off a DC input instead of standard wall power, so it's worth a look if you're setting up a mini-ITX rig, solar power project, or anything running on a car or battery-based system. At 200W, it's suited to low-power setups rather than gaming rigs with dedicated graphics cards. Buy Now at Newegg

Features

200W peak power output
19V DC input voltage
24-pin ATX connector
Mini-ITX form factor compatibility
Compact DC-to-ATX power conversion

Powerup 160W 12V 24-Pin ITX Power Supply Module for $59

Fri, 21 Aug 2026 00:18:09 -0400

PC builders working with small-form-factor ITX cases will appreciate how this module replaces a bulky standard PSU, freeing up space that a traditional power supply would otherwise eat up. It's a practical pick if you're squeezing a build into a tight enclosure and need reliable power without sacrificing airflow or layout options. Buy Now at Newegg

Features

160W maximum power output
12V DC input compatibility
24Pin ITX form factor design
Compact module for small systems
High-efficiency power delivery

Dell Optiplex SFF 180W Power Supply Replacement for $60

Fri, 21 Aug 2026 00:17:32 -0400

Small form factor Dell OptiPlex builds need a power supply that matches the case dimensions exactly, and this 180W replacement fits without the workarounds a generic unit might require. Handy to keep on hand if your current PSU is aging or already showing signs of failure. Buy Now at Newegg

Features

180W power output
Compatible with Dell Optiplex SFF systems
Model: 5XV5K

Dell 425W Power Supply for XPS 410, 420, 430, 9200, and E520 for $139

Fri, 21 Aug 2026 00:17:20 -0400

Anyone running an older Dell XPS 410, 420, 430, 9200, or E520 whose original power supply has died will want a straightforward, exact-fit replacement instead of guessing at compatibility with a generic unit. Buy Now at Newegg

Features

425W power output
Dell XPS desktop compatibility
Model: L425P-00