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

eMachines T5088 T5212 T5216 T5224 T5226 T5230 Power Supply Replacement for $80

Sun, 20 Sep 2026 23:01:10 -0400

Handy for anyone whose eMachines desktop won't power on and needs a direct-fit replacement rather than a universal unit that may not match the original connectors. Buy Now at Newegg

Features

Compatible with eMachines T5088, T5212, T5216, T5224, T5226, T5230
Reliable replacement power supply unit
Integrated cooling fan included
Lightweight 0.1 lb design
Durable grey finish

HP 725W Power Supply for ML350G4 for $411

Sun, 20 Sep 2026 23:00:59 -0400

Data center and server room admins keeping older HP ML350G4 towers running will want a reliable replacement on hand, since sourcing OEM-spec power supplies for legacy servers gets harder every year. It's a straightforward swap for anyone maintaining existing infrastructure rather than replacing the whole unit. Buy Now at Newegg

Features

725W power output capacity
Compatible with HP ML350G4 servers
Model: PS-3701-1

180W Power Supply for OptiPlex 3040 5040 7040 SFF for $132

Sun, 20 Sep 2026 23:00:43 -0400

Anyone replacing a dead power supply in a Dell OptiPlex SFF desktop (3040, 5040, or 7040) needs a unit that matches the original form factor exactly, and this one's built to drop right in without modifying the case or connectors. Buy Now at Newegg

Features

180W power output
Compatible with Opti-plex 3040, 5040, 7040 SFF
Model: D180ES-00

Dell N305P-06 305W Power Supply for OptiPlex GX620 for $103

Sun, 20 Sep 2026 23:00:25 -0400

Handy for repairing or upgrading an OptiPlex GX620 tower, since original Dell power supplies can be tricky to match with generic replacements. Buy Now at Newegg

Features

305watt power supply capacity
Model: N305P-06

HK300-95FP 195W Power Supply for Lenovo AIO for $168.60

Sun, 20 Sep 2026 23:00:18 -0400

Anyone whose Lenovo all-in-one desktop has stopped powering on will want this as a direct replacement rather than a universal substitute, since AIO power supplies are built to fit that specific slim form factor. It's a straightforward fix if you've confirmed the power supply is actually the failing component. Buy Now at Newegg

Features

195W power output
Compatible with B500, B505, B510, B50R1
Fully tested reliable performance
Model: HK300-95FP

Cisco UCS C220 M3 450W Power Supply for $182.50

Sun, 20 Sep 2026 23:00:09 -0400

Data center techs and anyone maintaining older Cisco UCS server infrastructure will want this on hand as a spare, since sourcing OEM power supplies for the C220 M3 gets harder as the model ages. Newegg has it in stock if your rack needs a reliable replacement without waiting on a special order. Buy Now at Newegg

Features

450W power output
Model: 341-0496-01
Compatible with Cisco C220 M3
High-efficiency server power supply
Reliable dual-input power delivery

420W ATX Power Supply for Dell Dimension for $80

Sun, 20 Sep 2026 22:59:56 -0400

Fits specific Dell Dimension desktop models that need an exact replacement, so check your tower's original part number before ordering since ATX supplies aren't always interchangeable across brands. Buy Now at Newegg

Features

420W power output
ATX standard form factor
Compatible with multiple Dell Dimension series
Integrated cooling fan
Lightweight 1.5lb design

P1S-2300V-R 300W Server Power Supply for $157

Sun, 20 Sep 2026 22:59:42 -0400

Anyone running a home server or workstation build that needs redundant power will want this on their radar, since 300W server supplies like this are built for continuous operation in ways consumer PSUs aren't designed to handle. It's a practical pick if you're setting up a NAS or small server rack and want hardware rated for that kind of sustained workload. Buy Now at Newegg

Features

300W power output
Model: P1S-2300V-R

HP Pavilion P7-1148P and P7-1203 Computer Power Supply Replacement for $80

Sun, 20 Sep 2026 22:59:27 -0400

Anyone with an older HP Pavilion P7-1148P or P7-1203 that's suddenly refusing to power on can swap in this replacement without hunting down a discontinued original from HP. Buy Now at Newegg

Features

Power supply replacement for HP Pavilion P7-1148P
Compatible with HP Pavilion P7-1203
Features one cooling fan
Lightweight 2.5 lb design

MSA1000 499W Power Supply Unit for $100

Sun, 20 Sep 2026 22:59:21 -0400

Server admins keeping older MSA1000 storage arrays running will want a reliable replacement on hand, since power supplies tend to be the first component to fail in these units. It's a straightforward swap that can save you from replacing the whole array when age catches up with the original unit. Buy Now at Newegg

Features

499W power capacity
Compatible with MSA1000 systems
Model: 30-50872-02
Integrated cooling fan
Compatible with 212398-005 304044-001 230331-001 212398-001

250W Power Supply for M4600 M4650 M4200f M4900c for $173

Sun, 20 Sep 2026 22:59:05 -0400

Anyone running a Dell PowerConnect M4600, M4650, M4200f, or M4900c switch will want a spare on hand, since a failed power supply can take your network hardware offline until it's replaced. Buy Now at Newegg

Features

250W power output
Compatible with M4600, M4650, M4200f, M4900c series
10-pin and 4-pin power connectors
Model: PCE026

685W Power Supply for Dell T3610 T5610 T5810 Workstations for $119

Sun, 20 Sep 2026 22:58:39 -0400

Workstation builds like these need matched replacement power, and this 685W unit is built specifically for the T3610, T5610, and T5810, so you won't run into compatibility guesswork when swapping out a failing PSU. Buy Now at Newegg

Features

685W power output
Compatible with T3610, T5610, T5810 workstations
Model: YP00X

Delta 250W 1U Power Supply DPS-250AB-44 B for $130

Sun, 20 Sep 2026 22:58:32 -0400

Anyone maintaining or building out server racks will want a reliable 1U power supply on hand, and this Delta unit is a straightforward replacement option for equipment that calls for a DPS-250AB-44 B spec. Buy Now at Newegg

Features

250W power output
1U form factor
Model: DPS-250AB-44 B

Lian Li 750W 80 Plus Gold SFX Power Supply for $248

Sun, 20 Sep 2026 22:58:12 -0400

Space-constrained builds running a mid-range gaming rig are the sweet spot here, since the SFX form factor squeezes 750W of Gold-rated efficiency into a case where a standard ATX supply won't fit. Buy Now at Newegg

Features

750W power output
80 Plus Gold efficiency certification
Fully modular cable design
Compact SFX form factor
Model: SP750

Workstation 690W Power Supply for P720 and P520 for $282

Sat, 19 Sep 2026 23:18:18 -0400

Anyone running a heavily loaded P720 or P520 workstation with multiple GPUs or drives will want the headroom this 690W supply provides, since underpowered systems tend to throttle or crash under sustained workloads. Buy Now at Newegg

Features

690W power output
Designed for P720 P520 workstations
Model: 54Y8980

Supermicro 500W Power Supply for $67

Sat, 19 Sep 2026 23:17:55 -0400

Server builders and folks replacing a failed unit will want to check the specs match their board, since this is a straightforward 500W supply without the bells and whistles of consumer-grade units. Buy Now at Newegg

Features

500W power output
Model: PWS-504P-1R

Cisco UCSB-PSU-2500ACPL 2,500W Power Supply for $365.20

Sat, 19 Sep 2026 23:16:49 -0400

Data centers running Cisco UCS blade server chassis need reliable, redundant power, and this 2,500W supply is built specifically for that setup rather than as a generic replacement. Newegg carries it for shops looking to expand capacity or swap out a failing unit without waiting on a Cisco service contract. Buy Now at Newegg

Features

2500W power capacity
Model: 341-0441-01
High efficiency power supply
Compatible with UCSB-PSU-2500ACPL

Dell Alienware 460W Video Card Dock Power Supply for $202

Sat, 19 Sep 2026 23:16:34 -0400

Alienware VR-ready graphics cards can strain a standard PSU, so this dock adds dedicated 460W power for the card without touching your system's main supply. Handy for anyone running a high-draw GPU in an Alienware rig that needs extra headroom. Buy Now at Newegg

Features

460W power output
Dell Alienware compatible power supply
Model: HU460AM-00

HP DL320E Gen8 Server Power Supply for $292

Sat, 19 Sep 2026 23:16:18 -0400

Data centers and IT shops running older HP ProLiant DL320e Gen8 servers will want this on hand as a replacement or spare, since matching the exact power supply spec keeps the server running within its original design tolerances. Newegg carries it for those maintaining legacy hardware without needing to source parts from HP directly. Buy Now at Newegg

Features

350W power output
Compatible with DL320E Gen8 servers
Model: 671326-001

850W ATX Gaming Power Supply for $118.80

Sat, 19 Sep 2026 23:15:11 -0400

Anyone building or upgrading a mid-to-high-end gaming rig will want the headroom this 850W supply provides, especially with a power-hungry GPU in the mix. Newegg's price makes it a reasonable way to future-proof your build without overspending on wattage you won't use yet. Buy Now at Newegg

Features

850W rated power output
Universal 110V-220V input compatibility
High-end video card support
ATX 24-pin connectivity