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

400W Flex ATX Modular Power Supply for $41

Fri, 04 Sep 2026 23:14:59 -0400

Small-form-factor builders and HTPC projects benefit most here, since the compact Flex ATX size fits cases that a standard ATX PSU won't, and the modular cables cut down on clutter inside tight enclosures. Buy Now at Newegg

Features

400W power output
Full modular cable design
Low noise operation
Compatible with 1U Flex ITX chassis
Model: AB01

HP DX2300 420W Power Supply for $80

Fri, 04 Sep 2026 23:14:06 -0400

Suits anyone whose HP DX2300 desktop needs a straightforward power supply swap without hunting down a proprietary part, since it's built to the exact specs the system originally shipped with. Newegg carries it as a direct replacement, so you're not stuck guessing at compatibility with a generic unit. Buy Now at Newegg

Features

420W power supply capacity
Compatible with HP DX2300 series
Integrated cooling fan
Model: 441390-001

Enhance ENP-7660B 600W 1U Power Supply for $302

Fri, 04 Sep 2026 23:13:33 -0400

Data center and server builders needing reliable rackmount power will find this 1U supply fits standard enclosures without eating into your available space, and the 600W output covers most single-server setups without overkill. Buy Now at Newegg

Features

600W power output
1U small chassis form factor
ATX standard compatibility
Model: ENP-7660B

600W 1U Server Power Supply Unit for $70

Fri, 04 Sep 2026 23:13:04 -0400

Data center hobbyists and small server builders needing reliable rack-mount power will find this 1U unit fits tight enclosure spaces without sacrificing wattage. It's a solid pick if you're replacing a failed OEM supply or building a compact home lab setup where standard ATX units simply won't fit. Buy Now at Newegg

Features

600W power output
1U form factor for servers
Model: TDPS-600CB B

Dell R420 550W Power Supply Unit for $331

Fri, 04 Sep 2026 23:12:52 -0400

Server closets and small business setups running Dell R420 hardware need exact-fit replacement parts, and this power supply matches the OEM spec without the guesswork of a third-party equivalent. Buy Now at Newegg

Features

550W power output
AC550E-S0 power supply
Compatible with Dell R420 and R320
Model: 4XX1H

Delta 830W Power Supply for $165

Fri, 04 Sep 2026 23:12:43 -0400

Server rooms and high-draw PC builds need power delivery that won't buckle under sustained load, and this 830W unit gives you enough headroom for a solid gaming rig or workstation without paying for capacity you'll never use. Buy Now at Newegg

Features

830W power output
Model: D20852-005

Liteon 650W 1U Modular Power Supply for $246.80

Fri, 04 Sep 2026 23:12:12 -0400

Data center and server-room builds where rack space is tight will benefit most from the 1U modular design, since it saves clearance while letting you skip unused cable runs. Buy Now at Newegg

Features

650W power output
Full modular cable design
Compact 1U form factor
Model: PS-4651-1ZT

180W-500W 10-Pin Desktop Power Supply Unit for $79

Fri, 04 Sep 2026 23:11:45 -0400

This power supply suits desktop builds needing a straightforward 10-pin PSU replacement without stepping up to a pricier modular unit, and the 180W-500W range gives you flexibility depending on your system's actual draw. Buy Now at Newegg

Features

180W, 210W, 500W power output options
10-pin small form factor power supply
Model: PA-2181-2 HK310-71PP

PCK002 350W Power Supply for $100

Fri, 04 Sep 2026 23:11:42 -0400

This 350W power supply suits budget builds or basic office PCs that don't need extra headroom for graphics cards or extra drives, so check your system's wattage needs before buying. It's a straightforward, no-frills option if you're replacing a failed unit or building something simple from scratch. Buy Now at Newegg

Features

350W power output
Compatible with Z1, Z2, G4, G5, G6, G8
Model: L70040-004

1000W Chia Mining Power Supply for $168.90

Fri, 04 Sep 2026 22:13:19 -0400

Miners running Chia rigs need steady, high-wattage output without the noise and inefficiency of gaming-focused units, and this power supply is built specifically for that kind of continuous load. Buy Now at Newegg

Features

1000W power output
25 SATA interfaces for massive storage
Dual CPU power support
Dual graphics card support
Model: Chia Mining ATX 1000W

HP ML150G6 ML330G6 Server 385W Power Supply for $254

Thu, 03 Sep 2026 23:33:34 -0400

Anyone maintaining older HP ProLiant ML150 G6 or ML330 G6 servers will want this on hand as a replacement or backup, since matching power supplies for legacy server hardware get harder to track down as the equipment ages. Buy Now at Newegg

Features

385W power output
Model: 466610-001
Model: 519742-001
Compatible with HP ML150G6
Compatible with HP ML330G6

Dell GPU Power Supply Module Expansion Board for PowerEdge T630 T640 for $56

Thu, 03 Sep 2026 23:33:33 -0400

Server upgraders working with the PowerEdge T630 or T640 will want this on hand since it's the specific board needed to add GPU power supply capacity to those chassis, and sourcing the exact part for older Dell servers isn't always straightforward. Buy Now at Newegg

Features

Model: 0X7C1K
Compatible with PowerEdge T630 server
Compatible with PowerEdge T640 server
Expands GPU power supply capacity
Modular expansion board design

ATX Server Power Supply Adapter Board for $17

Thu, 03 Sep 2026 23:33:26 -0400

A practical pick for anyone repurposing an old ATX power supply to run 12V equipment like LED strips, fans, or DIY electronics projects, since it lets you power on the PSU without needing a motherboard. Buy Now at Newegg

Features

24Pin ATX to IDE power conversion
Supports 8x 4Pin and 2x 6Pin outputs
Designed for high-performance mining rigs
Stable power distribution for multiple components
Compact ATX form factor compatibility

PC Power Supply Tester for $20

Thu, 03 Sep 2026 23:33:06 -0400

Anyone troubleshooting a computer that won't boot can plug this in to quickly rule out a dead power supply before replacing other parts, saving you from guessing which component actually failed. Buy Now at Newegg

Features

Test 20/24 pin PC power supplies
Measure 12V 5V 3.3V voltage levels
Integrated LED indicators for status checks
Compatible with ATX and SATA power connectors
Model: 2023-07-17 4-15-12-097

750W Power Supply for Dell PowerEdge R510 R910 T710 for $65

Thu, 03 Sep 2026 23:32:42 -0400

Server admins running a Dell PowerEdge R510, R910, or T710 will want this on hand as a direct replacement when a power supply fails, since matching your exact model keeps the system's redundancy and airflow design intact. Buy Now at Newegg

Features

750W power output capacity
Reliable server-grade power supply architecture
Compatible with PowerEdge R510 R910 T710 models
Model: 7001531-J000
Redundant power efficiency for critical hardware

FSP 160W Power Supply for CP5141 Desktop for $38

Thu, 03 Sep 2026 23:31:54 -0400

Worth grabbing if your CP5141 desktop's power supply has died or you're building a replacement rig, since matching the original wattage and form factor means you won't run into compatibility headaches. Buy Now at Newegg

Features

160W maximum power output
Compatible with FSP100-50GUB, FSP180-50PLA, FSP200-50AP
Designed for CP5141 desktop systems

300W Power Supply Unit for Dell OptiPlex Tower for $96

Thu, 03 Sep 2026 23:31:53 -0400

Small-form desktop upgrades or repairs are where this fits best, since it's built specifically to replace a failed OptiPlex tower PSU without hunting for a compatible generic unit. Buy Now at Newegg

Features

300W power output
Compatible with Optiplex 7070 7090 7080 5090 3060 3070
Model: H300EPS-00

Array Networks APV 3520 5200 620W Switching Power Supply for $264

Thu, 03 Sep 2026 23:31:52 -0400

This power supply suits IT teams maintaining Array Networks APV load balancers who need a reliable replacement or backup unit on hand for their existing hardware. Since it's a specific OEM component, sourcing it directly from Newegg helps you avoid compatibility guesswork with third-party alternatives. Buy Now at Newegg

Features

620W power output
Redundant power supply
Compatible with APV 3520, 5200
Model: SPR2C620

Powerup 240W Desktop Power Supply for OptiPlex 390 790 990 for $59

Thu, 03 Sep 2026 23:31:49 -0400

Old OptiPlex towers can be finicky about replacement parts, so having a supply built to match the 390, 790, and 990 specs takes the guesswork out of the swap. It's a straightforward fix for anyone whose desktop won't power on and needs an exact-fit replacement rather than a universal unit. Buy Now at Newegg

Features

240W power capacity
Desktop form factor
Compatible with OptiPlex 390, 790, 990

HP Z640 925W Workstation Power Supply for $169

Thu, 03 Sep 2026 23:31:18 -0400

Best suited for anyone repairing or upgrading an HP Z640 workstation, since matching the original 925W spec avoids compatibility issues that come with generic replacements. Newegg carries it as a direct fit, so you won't need to hunt down connector adapters or rewire anything. Buy Now at Newegg

Features

925W power output capacity
Designed for Z640 workstation compatibility
Model: 719797-002