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

darkFlash PMT1250 1,250W Fully Modular Power Supply for $130

Sat, 29 Aug 2026 23:23:11 -0400

Anyone building a high-draw system with multiple GPUs or overclocked components will want the headroom this 1,250W supply provides, and the fully modular cables mean you only run what your build actually needs. Buy Now at Newegg

Features

1250W fully modular power supply
Cybenetics Platinum and 80 PLUS Gold certified
ATX 3.1 and PCIe 5.1 ready
Native 12V-2x6 support
Model: PMT1250

HPE 1,050W Power Supply JL087A for $1,627

Sat, 29 Aug 2026 23:22:57 -0400

For anyone managing HPE networking gear, this power supply is a straightforward way to keep your switches running with the manufacturer-specified wattage they need, without hunting down a compatible third-party option. Buy Now at Newegg

Features

1050W maximum output power
54V DC regulated output
120V to 230V DC input range
Efficient power conversion management
Model: JL087A#B2C

Ablegrid AC Adapter for Dell OptiPlex 3050 Micro Desktop for $12

Sat, 29 Aug 2026 23:22:24 -0400

Anyone running a Dell OptiPlex 3050 Micro whose original power brick died or went missing can swap this one in without hunting down Dell's own replacement part. Buy Now at Newegg

Features

Compatible with Dell OptiPlex 3050 D10U002 Micro
Reliable AC power supply
Model: D10U002

Gateway DX4350 DX4370 DX4375 DX4375G DX4820 Power Supply Replacement for $80

Sat, 29 Aug 2026 23:22:17 -0400

Replacing a dead power supply is often cheaper than replacing the whole tower, and this one's built to match the exact specs of these Gateway desktop models so you don't run into compatibility issues. Buy Now at Newegg

Features

Compatible with Gateway DX4350, DX4370, DX4375, DX4375G, DX4820
Reliable 2.5lb power supply replacement
Integrated cooling fan for heat management

Powerup 1,000W ATX Gold Power Supply for $334

Sat, 29 Aug 2026 23:22:16 -0400

Handles higher-wattage builds with room to spare, so it suits anyone running a power-hungry GPU or planning to upgrade down the line, and the Gold efficiency rating keeps your electricity costs down over time. Buy Now at Newegg

Features

1000W power capacity
80 Plus Gold efficiency certification
ATX form factor
100-240V wide voltage range
Active PFC support

AcBel 550W 80Plus Gold Switching Power Supply for $228

Sat, 29 Aug 2026 23:22:10 -0400

For anyone building or upgrading a mid-range PC, this power supply's 80Plus Gold rating means less wasted energy and lower heat output compared to standard units, without the premium price of higher-wattage models. Buy Now at Newegg

Features

80 PLUS Gold efficiency certification
550W total power output
Reliable internal switching power supply
Standard ATX form factor compatibility
Model: FSA035

EVGA 500BQ 500W 80 Plus Bronze Semi-Modular Power Supply for $160

Sat, 29 Aug 2026 23:21:57 -0400

Semi-modular design lets you skip the cables you don't need, making cable management easier for anyone building a mid-range PC without the higher cost of a fully modular unit. Buy Now at Newegg

Features

500W rated power output
80PLUS Bronze energy efficiency
Semi-modular cable management
Silent cooling fan
Model: 500BQ

Juniper EX9214 Redundant AC Power Supply Unit for $36,299.88

Sat, 29 Aug 2026 23:19:30 -0400

Data center and networking pros running EX9214 switches will want a spare or replacement AC power supply on hand to keep redundancy intact and avoid downtime if a unit fails. It's a straightforward match for anyone already invested in Juniper's EX9214 chassis lineup rather than a general-purpose accessory. Buy Now at Newegg

Features

Model: EX9214-REDUND3-AC

400W Flex 1U Computer Power Supply for $74

Sat, 29 Aug 2026 23:12:24 -0400

For anyone building or repairing a compact 1U rackmount system, this power supply fits the tight space constraints while still delivering the 400W needed to keep a low-profile server running reliably. Buy Now at Newegg

Features

400W power output
Compact flex form factor
NAS and server compatibility

600W Flex 1U Power Supply for $111

Sat, 29 Aug 2026 23:09:23 -0400

For anyone building or replacing a slim server setup, this 1U form factor delivers 600W in a compact footprint that fits tight rack spaces without sacrificing capacity. Buy Now at Newegg

Features

600W power output
Flex form factor for small cases
Compatible with servers and workstations
Stable power delivery for gaming builds

850W RGB ATX Power Supply for $103

Sat, 29 Aug 2026 23:02:30 -0400

Gamers and PC builders running high-end GPUs will appreciate the 850W of headroom, and the RGB lighting adds a nice touch if your build has a windowed side panel. Buy Now at Newegg

Features

850W continuous power output
1200W peak power capacity
Bivolt 220V compatibility
ATX standard form factor
20/24 pin motherboard connector

360W H360EGM-00 Power Supply Unit for $88

Fri, 28 Aug 2026 23:16:52 -0400

Worth a look if you're building or repairing a system that calls for a 360W supply, especially budget desktops that don't need extra wattage headroom for upgrades. Buy Now at Newegg

Features

360W power supply output
Model: H360EGM-00
Compatible with Dell 3668, 3050MT, 7050MT
Supports V3650, V3653 MT systems
High-efficiency SMPS architecture

ASRock TC-1300T 1,300W Power Supply for $250

Fri, 28 Aug 2026 23:16:11 -0400

This power supply suits gamers or PC builders running high-end setups with power-hungry GPUs that need serious headroom, and at $250, that's $200 (44%) off the $450 list price. Buy Now at Newegg

Features

1300W power with 80 PLUS Titanium efficiency
ATX 3.1 and PCIe 5.1 compatibility
Dual 12V-2x6 cables for high-performance GPUs
Fully modular design for clean cable management
Model: TC-1300T

Dell XPS 8900 Desktop Power Supply Replacement for $80

Fri, 28 Aug 2026 23:16:10 -0400

This power supply replacement suits Dell XPS 8900 owners dealing with a failing or dead unit, since generic PSUs don't always match Dell's proprietary connectors and dimensions. Newegg carries it as a direct-fit option, so you can swap it in without modifying cables or the case. Buy Now at Newegg

Features

Compatible with Dell XPS 8900 Studio Desktop
Direct replacement for XW597 and XW598
Model: XW597

HP 180W 4-Pin Power Supply Unit for $69

Fri, 28 Aug 2026 23:15:57 -0400

Anyone replacing a failing power supply or building out a budget desktop will find this handy, since it delivers a stable 180W at a size that fits into HP's compact tower cases without modification. Buy Now at Newegg

Features

180W power output
4-pin connector design
Compatible with HP G1, G2, G3 series
Model: 901762-002

Power Supply Adapter for 280G3 and 400G5 for $77

Fri, 28 Aug 2026 23:15:11 -0400

Handy for anyone whose 280 G3 or 400 G5 desktop's original power supply has failed, since replacements matching these specific model lines can be tricky to track down. Buy Now at Newegg

Features

Compatible with HP 280G3 400G5 systems
180W maximum power output
Includes integrated power switch cable
Replaces PCH019 PA-1181-3HB HV DPS-180AB-3A
Model: PCH019

Dell R440 550W Server Power Supply for $200

Fri, 28 Aug 2026 23:14:54 -0400

A solid pick if you're maintaining or building out a fleet of Dell R440 servers and need a genuine replacement power supply rather than a generic substitute. Newegg carries it for those times when a failed unit needs swapping out without waiting on OEM lead times. Buy Now at Newegg

Features

550W power output
D-ell R440 server compatibility
Model: D550E-S1
Part number 06V43G

Delta Electronics TPSN-600AB 605W Server Power Supply for $170

Fri, 28 Aug 2026 23:14:32 -0400

Refurbished server builds or NAS setups that need reliable, redundant-style power will get solid use out of this 605W supply, especially if you're replacing a failed unit in existing rack hardware. Newegg's listing makes it easy to match this Delta model to compatible server chassis before you buy. Buy Now at Newegg

Features

605W power output
Delta Electronics high-performance server hardware
Model: TPSN-600AB

HP 300W Power Supply for ProDesk 400 G2 and 550 G2 for $50.40

Fri, 28 Aug 2026 23:14:26 -0400

This power supply suits anyone repairing or upgrading a ProDesk 400 G2 or 550 G2 without hunting down a compatible OEM part, since it's built to match those specific tower configurations. Newegg carries it as a straightforward replacement option if your existing unit has failed or you're restoring an older office desktop to working condition. Buy Now at Newegg

Features

300W power output
Compatible with ProDesk 550 405 G2 400 G2
Model: 759045-001

Dell 250W SATA Power Supply for Optiplex GX280 for $150

Fri, 28 Aug 2026 23:14:11 -0400

This power supply suits anyone repairing or upgrading an older Optiplex GX280 tower where the original unit has failed, since it's built to the exact specs Dell used rather than a generic replacement. Newegg carries it for those hard-to-find legacy parts that most retailers no longer stock. Buy Now at Newegg

Features

250 Watt power capacity
SATA power interface
Model: U4714