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

HP ProDesk 600 G1 Power Supply for $130

Wed, 26 Aug 2026 23:56:44 -0400

Anyone repairing or upgrading an HP ProDesk 600 G1 desktop will want a power supply that matches the original specs exactly, so replacing a failing unit is straightforward without hunting down compatibility info elsewhere. Buy Now at Newegg

Features

Compatible with HP ProDesk 600 G1
240W total power output
Replaces PS-4241-2HF
Model: 702309-001

Dell 550W 80 Plus Platinum PowerEdge R430 Power Supply for $168

Wed, 26 Aug 2026 23:56:35 -0400

Server upgrades and homelab builds needing reliable, efficient power delivery for the PowerEdge R430 will benefit from this 80 Plus Platinum-rated supply, since it's built to Dell's exact specs rather than a generic replacement. Newegg carries it if you're sourcing a direct replacement without going through Dell's own parts channel. Buy Now at Newegg

Features

550W power output
80 PLUS Platinum efficiency
Compatible with PowerEdge R430
Model: L550E-S1

300W Mini ATX Power Supply Unit for $54.70

Wed, 26 Aug 2026 23:20:19 -0400

Small form-factor builds often struggle to find a compatible PSU, so this mini ATX unit suits compact cases and HTPC builds where a standard-sized power supply just won't fit. Buy Now at Newegg

Features

300W power capacity
Standard ATX form factor
Active PFC for efficiency
12V output for stable power
24-pin connector for wide compatibility

1U Flex Mini ATX Computer Power Supply for $34

Wed, 26 Aug 2026 01:41:52 -0400

Space-constrained builds like small form factor PCs or home server racks benefit most from this one, since it's designed to fit where a standard ATX power supply simply won't. Newegg carries several wattage options, so you can match capacity to your build without sacrificing the compact footprint. Buy Now at Newegg

Features

Compact Mini ATX form factor
Compatible with small 1U Flex power supplies
Space-saving chassis design
Suitable for home office configurations

Tyco HW005A0F1-S Power Supply for $210

Wed, 26 Aug 2026 00:12:26 -0400

Anyone repairing or replacing a failed power supply in industrial or specialty equipment will want to check compatibility with this Tyco unit before buying, since it's built to exact OEM specs rather than as a universal fit. Newegg carries it if you need a direct replacement without hunting down the original manufacturer. Buy Now at Newegg

Features

Model: HW005A0F1-S

HP G9 DPS-750AB-31A Server Power Supply for $163

Wed, 26 Aug 2026 00:10:44 -0400

Anyone running or repairing HP G9 series servers will want this on hand, since matching the exact power supply model matters for compatibility and reliable operation. Newegg carries it if your original unit fails or you're building out redundant power for a rack setup. Buy Now at Newegg

Features

750W power output
Model: DPS-750AB-31A
Compatible with HP ProLiant servers
Hot-pluggable design
High-efficiency power conversion

Dell Dimension 4600 and 4700 420W Power Supply Replacement for $80

Wed, 26 Aug 2026 00:04:47 -0400

Older Dell Dimension towers are notorious for proprietary power supply quirks, so this replacement suits anyone keeping a 4600 or 4700 running rather than replacing the whole machine. Newegg carries it if you'd rather buy a direct fit than gamble on a generic ATX swap. Buy Now at Newegg

Features

420W power output
Compatible with Dell Dimension 4600 and 4700

Almost 1,200W Power Supply for Sun T3-1 T4-1 X4270M2 T5240 for $99

Wed, 26 Aug 2026 00:04:31 -0400

Server administrators maintaining older Sun hardware will want this as a direct replacement option, since sourcing OEM power supplies for these specific legacy systems gets harder every year. Buy Now at Newegg

Features

1200W power capacity
Compatible with Sun T3-1 T4-1 servers
Replaces X4270M2 power units
Supports T5240 hardware
Model: 300-2235-03

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