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

Compaq Business PC 300W Power Supply Replacement for $80

Fri, 28 Aug 2026 23:13:59 -0400

Anyone running an older Compaq business desktop that's started shutting down unexpectedly or won't power on at all could use this to rule out a failing PSU without buying a whole new machine. It's a straightforward fix for a common failure point, and Newegg carries it as a direct replacement rather than a universal fit you'd have to modify. Buy Now at Newegg

Features

300 watt power supply
Compatible with dc5100, dx6100, dx6120 business PCs
Integrated cooling fan

220W Power Supply Unit for $82

Fri, 28 Aug 2026 23:13:36 -0400

Gamers and PC builders upgrading older systems will want this for the wattage bump, especially if you're adding a new graphics card or extra drives that your current PSU can't handle. Buy Now at Newegg

Features

Universal compatibility for L220AS-00 H220AS-01 HU220AS-01 systems
220W power output
Reliable direct replacement power supply

HP 310W Power Supply for 400 G5 600 280 G3 for $283.70

Fri, 28 Aug 2026 23:13:36 -0400

Anyone troubleshooting a dead HP 400 G5, 600, or 280 G3 desktop will want a direct-fit replacement like this rather than gambling on a universal power supply that may not match the connectors or wattage. Buy Now at Newegg

Features

310W total power output
4Pin connector for HP systems
Model: L33619-002
Compatible with HP 400 G5, 600, 280 G3
High-efficiency internal power supply

Delta 220W Switching Power Supply for $173

Fri, 28 Aug 2026 23:13:02 -0400

Handy as a replacement or backup unit for anyone running Delta-compatible hardware, since a mismatched power supply can cause startup issues or hardware damage down the line. Buy Now at Newegg

Features

220W total power output
Switching power supply technology
Model: 34-1665-01

155W Power Supply for Dell OptiPlex 7460 for $93

Fri, 28 Aug 2026 23:13:00 -0400

Anyone running a Dell OptiPlex 7460 that's lost power or is due for a backup unit can grab this 155W supply as a direct fit without hunting down a discontinued OEM part. Buy Now at Newegg

Features

155W power supply output
Compatible with OptiPlex 7460
Model: AC155EBA-00

FSP 350W Switching Power Supply for $104

Fri, 28 Aug 2026 23:12:52 -0400

Older desktop builds and basic office PCs that don't need extra wattage will run fine on this, especially if you're replacing a dead PSU without upgrading other components. Buy Now at Newegg

Features

350W power output
110V-230V universal voltage input
Model: FSP350-60PFG

PS-4181-7 180W Small Chassis Power Supply for $97

Fri, 28 Aug 2026 23:12:41 -0400

Anyone building a compact PC where standard ATX power supplies won't fit should take a look at this, since it's sized specifically for small-form-factor cases while still delivering 180W to run modest builds. Buy Now at Newegg

Features

180W power output
Small chassis form factor
Compatible with 793073-001
Compatible with 797009-001
Model: PS-4181-7

550W 1U ATX Modular Power Supply for $144

Fri, 28 Aug 2026 23:12:29 -0400

Compact 1U form factors are hard to find in a modular build, so this suits anyone piecing together a slim rackmount or small-form-factor PC who still wants clean cable management. Buy Now at Newegg

Features

550W power output
1U form factor for NAS cases
Fully modular cable design
Energy efficient power conversion
Silent operation switching

460W Server Power Supply for Graphics Card 12-Pack for $77

Fri, 28 Aug 2026 23:12:14 -0400

Newegg's 460W Server Power Supply 12-pack suits crypto miners and multi-GPU rig builders who need several reliable power sources at once without buying units one at a time. Buy Now at Newegg

Features

460W power output capacity
12-piece 6-pin to 6+2 pin connector cables
Compatible with server power supply units
Supports high-performance graphics card power delivery
Model: 511777-001

Max 500W 1U Flex ATX Power Supply for $85

Fri, 28 Aug 2026 22:38:28 -0400

Anyone building a compact HTPC or slim server setup will want the 1U flex form factor here, since it fits cases where a standard ATX power supply simply won't. At 500W, it's suited to systems with modest power draw rather than gaming rigs packing high-end GPUs. Buy Now at Newegg

Features

500W maximum power output
1U Flex ATX form factor
Full modular cable design
Small chassis footprint
Compatible with POS and ITX systems

Flex 300W 1U ATX Power Supply for $80

Fri, 28 Aug 2026 00:41:14 -0400

Space-constrained builds like small form-factor PCs or NAS setups need this compact 1U form factor, and 300W is enough headroom for a basic system without dedicated graphics. Buy Now at Newegg

Features

300W Flex ATX power output
Compact 1U form factor
Active PFC energy efficiency
12V output for ITX builds
Small form factor chassis compatibility

500W 1U Flex PC Power Supply for $104

Fri, 28 Aug 2026 00:40:41 -0400

Anyone building a compact or slim-profile PC needs a power supply that actually fits the case, and this 1U flex form factor gives you 500W of output without the bulk of a standard ATX unit. Buy Now at Newegg

Features

500W power output
1U small form factor
Fully modular design
Compatible with ITX cases
Model: FLEX

Powerup 400W Industrial Power Supply for $418

Fri, 28 Aug 2026 00:07:44 -0400

Anyone building or repairing industrial equipment needs a power supply that won't quit under heavy loads, and this one's rated for continuous 400W output to handle demanding setups without overheating. Buy Now at Newegg

Features

400W power output capacity
Industrial-grade reliability
Model: HG2-6400P

N240 V240 Power Supply for $178

Fri, 28 Aug 2026 00:07:28 -0400

Anyone building or upgrading a compact PC needs a reliable power supply that matches their case's form factor, and the N240 V240 delivers steady, efficient power without taking up extra space in smaller builds. Buy Now at Newegg

Features

Model: N240 V240 AA23650

Dell Inspiron 23 5348 185W Power Supply Unit for $178

Fri, 28 Aug 2026 00:04:55 -0400

For anyone whose Dell Inspiron 23 5348 has died or won't hold a charge, this replacement power supply gets you back up and running without hunting down a used unit of questionable condition. Buy Now at Newegg

Features

185W power output
Compatible with Inspiron 23 5348
Model: B185EA-00

SPABRCD-09G 504W Server Power Supply for $278

Fri, 28 Aug 2026 00:04:40 -0400

Anyone building or maintaining a server rack will want reliable, high-wattage power delivery without the guesswork, and the SPABRCD-09G's 504W output covers demanding multi-drive setups with room to spare. It's a straightforward pick for data center or homelab builds where consistent uptime matters more than flashy features. Buy Now at Newegg

Features

504W power output capacity
High-efficiency server power conversion
Compact form factor for server integration
Reliable redundant power delivery
Model: 23-1000063-02

AHF-2DC-3000W Power Supply for $167.30

Fri, 28 Aug 2026 00:04:35 -0400

Anyone running heavy-duty electronics or industrial setups that demand stable, high-capacity power will want this on their radar, since the 3000W output leaves headroom for demanding loads without straining the system. It's a practical pick if your equipment needs dependable power delivery rather than a consumer-grade supply that's already maxed out under load. Buy Now at Newegg

Features

3000W power capacity
Model: ECD16020005/03

180W Power Supply for HP Prodesk MT Series for $92

Fri, 28 Aug 2026 00:04:21 -0400

Runs your HP ProDesk Mini Tower without hunting down an OEM part, since it's built to match the original specs and slots right into the case. Buy Now at Newegg

Features

180W power output
Compatible with ProDesk G3 MT systems
Model: 901771-003

FSP Vita GM 1,000W 80 Plus Gold Modular Power Supply for $140

Fri, 28 Aug 2026 00:03:46 -0400

This modular PSU suits builders running higher-end GPUs that need reliable, clean power delivery, and the 80 Plus Gold rating means better efficiency than budget units at the same wattage. Newegg has it for $140, $20 off the $160 list price. Buy Now at Newegg

Features

1000W 80+ Gold power output
ATX 3.1 and PCIe 5.1 ready
12V-2x6 cable for modern GPUs
Fully modular cable design
Model: VITA-1000GM

870W Poweredge Server Switching Power Supply for $108

Fri, 28 Aug 2026 00:03:39 -0400

Anyone running or maintaining PowerEdge server infrastructure will want a reliable replacement or backup on hand, since a dead power supply can take a whole server offline unexpectedly. It's built to the same specs as the original equipment, so you don't have to worry about compatibility issues when swapping it in. Buy Now at Newegg

Features

870W power output
Model: C570A-S0