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

HP 901981-003 Desktop Power Supply Unit for $68

Wed, 26 Aug 2026 00:03:50 -0400

Anyone replacing a failed OEM power supply in an HP desktop will want a direct fit rather than a universal unit, and this one matches the original specs without requiring case or wiring modifications. Newegg carries it if your local shop comes up empty. Buy Now at Newegg

Features

Compatible with HP Elite Desk
901981-003 power supply replacement
AC/DC adapter charger
Mains PSU cable included
Model: 901981-003

700W ATX Gaming Power Supply Unit for $121

Wed, 26 Aug 2026 00:03:44 -0400

Anyone building or upgrading a gaming rig should check their wattage needs against this unit before buying, since 700W covers most mid-to-high-end GPU and CPU combos without overspending on capacity you won't use. Buy Now at Newegg

Features

700W total power output
Quiet 140mm fan cooling
ATX 12V form factor
Dual CPU support
SATA and PCI connectivity

FSP 400W Industrial Power Supply for $175

Wed, 26 Aug 2026 00:03:29 -0400

Anyone building or repairing industrial equipment on a budget will want this one, since it delivers steady 400W output without the premium price tag of specialty brands. Newegg has it in stock for straightforward replacement jobs where reliability matters more than extra features. Buy Now at Newegg

Features

100-240V wide input voltage range
Industrial-grade power supply reliability
Model: FSP400-60PFI

Advantech 1U 150W Switching Power Supply for $237

Wed, 26 Aug 2026 00:03:15 -0400

Worth a look if you're building or maintaining a 1U rackmount system and need a compact, reliable power supply that fits the tight clearance without sacrificing output. Newegg carries it for those setting up server rooms or industrial equipment where standard ATX supplies simply won't fit. Buy Now at Newegg

Features

150W total power capacity
1U rackmount form factor
High-efficiency switching power technology
Industrial-grade hardware reliability
Model: P1U-6150P

RM-3514-00 350W Disk Array Cabinet Power Supply for $194

Wed, 26 Aug 2026 00:02:26 -0400

Data centers and IT pros managing storage arrays will want this as a direct replacement when a disk array cabinet's power supply fails, keeping your existing setup running without a full hardware swap. Buy Now at Newegg

Features

350W power output
Disk array cabinet compatibility
Model: RM-3514-00

FSP 800W Server Switch Power Supply for $205

Wed, 26 Aug 2026 00:01:58 -0400

Anyone building or upgrading a server rack will want the reliable, consistent power delivery this 800W supply offers, especially in setups where uptime matters more than flashy features. Buy Now at Newegg

Features

800W power output
Model: FSP800-20ERM-L

2,000W ATX Mining Power Supply for $188

Wed, 26 Aug 2026 00:00:29 -0400

Multiple GPUs pulling heavy sustained loads need stable, high-capacity power, and this 2,000W unit is built for mining rigs rather than a typical gaming build. It's a practical pick if you're running several cards at once and don't want to juggle multiple standard PSUs. Buy Now at Newegg

Features

2000W power capacity
ATX form factor
Optimized for cryptocurrency mining

Enhance 400W 1U Server Power Supply for $181

Tue, 25 Aug 2026 23:59:15 -0400

Small businesses running dense server racks will appreciate the compact 1U form factor here, since it delivers reliable power without eating into valuable rack space. It's a practical pick if your setup demands consistent output in tight quarters rather than raw wattage headroom. Buy Now at Newegg

Features

400W server power supply
1U rackmount form factor
100% pre-delivery testing
Model: ENH-1940

375W Power Supply for N375P-00 L375P-00 P8401 K8956 WM283 NPS-375AB A 50N for $80

Tue, 25 Aug 2026 23:57:23 -0400

Anyone repairing or replacing a failed Dell power supply will want to check the exact model numbers here first, since compatibility comes down to matching those codes precisely rather than wattage alone. It's a straightforward fix for older Dell desktop towers that need this specific replacement part. Buy Now at Newegg

Features

375W power supply
Model: N375P-00

Yustda 120W AC/DC Adapter for Asus Prime Motherboards for $38

Tue, 25 Aug 2026 23:50:51 -0400

Losing or damaging your original power adapter shouldn't mean replacing the whole motherboard setup, and this one gives Asus Prime board owners a straightforward replacement without hunting down a factory-exact part. It's a sensible pick for anyone rebuilding or troubleshooting a system where the original brick has gone missing or died. Buy Now at Newegg

Features

120W power output
19V 6.32A power delivery
Asus Prime H310T motherboard compatible
APD DA-120A19 replacement charger
Model: DA-120A19

Gateway GT3084M and GT3226M Power Supply Replacement for $80

Mon, 24 Aug 2026 23:53:11 -0400

Restarting a dead Gateway GT3084M or GT3226M often comes down to a failed power supply, so this replacement is worth grabbing before you assume the whole machine is toast. Buy Now at Newegg

Features

Compatible replacement power supply for Gateway GT3084M GT3226M
Includes one high-performance cooling fan
Lightweight 2.5lb design for easy installation

Dell 290W Power Supply Unit for $100

Mon, 24 Aug 2026 23:53:06 -0400

Suits anyone whose desktop's power supply died or is due for a refresh, since matching Dell's exact spec avoids the compatibility guesswork of a generic replacement. Buy Now at Newegg

Features

290W power supply output
Compatible with Dell OptiPlex 3020 and 7020MT
Replaces L290AM-00, AC290AM-00 part numbers
Genuine 776VT, RVTHD, XFXKX internal components
Model: L290AM-00

AMS2500 DF-F800 Power Supply 3276255-A for $200

Mon, 24 Aug 2026 23:53:02 -0400

Anyone maintaining or repairing industrial equipment that relies on the DF-F800 series will want this on hand, since matching the exact part number saves you the guesswork of finding a compatible substitute. Newegg carries it if you need a dependable source for this specific power supply. Buy Now at Newegg

Features

Model: 3276255-A

Powerup 280W Desktop Power Supply for OptiPlex 360/380 for $136

Mon, 24 Aug 2026 23:52:38 -0400

Anyone repairing or upgrading an older Dell OptiPlex 360 or 380 desktop will want a direct-fit replacement like this on hand, since sourcing the correct wattage and connector layout for these specific models can be trickier than buying a generic PSU. Buy Now at Newegg

Features

280W power output
Compatible with OptiPlex 360, 380
Model: L280P-01

HP Pavilion HPE Elite h8 1440T Desktop Power Supply Replacement for $79

Mon, 24 Aug 2026 23:52:35 -0400

Sudden desktop shutdowns or a failure to power on at all usually point to a dying supply, and this replacement is built specifically for the HP Pavilion HPE Elite h8 1440T, so you won't be stuck guessing about compatibility. Buy Now at Newegg

Features

Replacement power supply for HP Pavilion HPE Elite h8
Compatible with HP Pavilion HPE Elite h8 1440T
Includes one dedicated cooling fan
Lightweight 2.5lb design

HP ProDesk 180W Power Supply for $85.20

Mon, 24 Aug 2026 23:52:28 -0400

The 180W power supply is built for HP ProDesk small form factor towers, so it's a straightforward pick if your original unit died and you need a compatible replacement rather than a universal fit. Newegg carries it for owners who'd rather swap in an exact match than troubleshoot power issues with a generic unit. Buy Now at Newegg

Features

180W power output
Compatible with G3 G4 ProDesk series
Tested for reliable performance
Model: 913149-001

DPS-550AB-11A 550W Power Supply for $347.50

Mon, 24 Aug 2026 23:52:17 -0400

Newegg's DPS-550AB-11A suits anyone building or repairing a desktop that needs a reliable 550W supply without paying for wattage you'll never use. Buy Now at Newegg

Features

550W power output
Compatible with NF5280M6, M5, M4 motherboards
Model: DPS-550AB-11A

Dell PS4100 PS6100 SC200 SC220 H700E-S0 DD20N Storage Power Supply for $198

Mon, 24 Aug 2026 23:52:06 -0400

Anyone maintaining Dell PowerVault storage arrays will want a reliable spare on hand, and this power supply covers several compatible models so you're not stuck hunting for the exact match during a failure. Buy Now at Newegg

Features

Compatible with Dell PS4100 PS6100 SC200 SC220 storage systems
Model: H700E-S0

HP 350W Micro ATX Power Supply for ML310E Gen8 for $119

Mon, 24 Aug 2026 23:51:59 -0400

Anyone running an HP ML310E Gen8 server and needing a direct replacement part will appreciate this power supply, since it's built to the server's exact specs rather than a generic swap. Buy Now at Newegg

Features

350W power output
Micro ATX form factor
Multi-output fixed power design
Compatible with ML310e Gen8
Model: 686761-001

Poinwer 255W Power Supply for Dell Optiplex and Precision SFF Systems for $50

Mon, 24 Aug 2026 23:51:07 -0400

Anyone maintaining older Dell Optiplex or Precision small form factor desktops will want this on hand, since finding a compatible replacement power supply for those specific case dimensions can otherwise be a hassle. Newegg carries it as a straightforward, purpose-built swap rather than a universal unit you'd need to modify. Buy Now at Newegg

Features

255W power output for Dell Small Form Factor systems
Compatible with Optiplex 3020, 7020, 9020 and Precision T1700
Includes R7PPW, 3XRJ0, V9MVK, FP16X, T4GWM part compatibility
Supports multiple industry standard power supply part numbers
Model: NT1XP