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

Dell OptiPlex 3020 7020 9020 255W Power Supply Unit for $174

Tue, 22 Sep 2026 23:04:21 -0400

Anyone repairing or upgrading an older OptiPlex tower will want a supply that matches the original spec exactly, and this 255W unit is built to drop into the 3020, 7020, and 9020 without any wiring workarounds. Buy Now at Newegg

Features

255W power supply output
8-pin and 4-pin connectors
Model: H255AS-00
Compatible with OptiPlex 3020 7020 9020
Standardized power supply unit

Vapel 1,200W PHD1K2S12-DB Power Supply for $219

Tue, 22 Sep 2026 23:03:38 -0400

Anyone building a mid-to-high-end gaming rig needs a power supply with enough headroom for a hungry GPU, and 1,200W gives you room to upgrade components later without worrying about running out of capacity. Buy Now at Newegg

Features

1200W power capacity
Model: PHD1K2S12-DB

ThinkCentre M90z 150W Power Supply for $178

Tue, 22 Sep 2026 23:03:37 -0400

This 150W power supply is built specifically for the ThinkCentre M90z all-in-one desktop, so it's a straightforward pick if your original unit has failed and you need an exact replacement rather than a universal fit. Newegg carries it for those dealing with a dead or unreliable PSU on this particular model. Buy Now at Newegg

Features

150W power output
Model: 89Y1686
Model: 54Y8861
Compatible with ThinkCentre M90z

FSP Power Supply Unit for $79

Tue, 22 Sep 2026 23:02:59 -0400

Anyone building or upgrading a desktop needs a reliable PSU, and this one's a solid pick if you want stable power delivery without paying for extras you don't need. Buy Now at Newegg

Features

12V LCD power supply output
Model: HK400-22GP
Compatible with HK350-22GP
Compatible with FSP250-50SPV

HK401-11FP Power Supply for $344.90

Tue, 22 Sep 2026 23:02:45 -0400

Anyone building or upgrading a PC that needs reliable, consistent power delivery should take a look at this one, especially if you're running components sensitive to voltage fluctuations. It's a solid pick for a build where you want steady output without paying for features you won't use. Buy Now at Newegg

Features

Compatible with multiple power supply models
Provides reliable electrical power output
Designed for stable system performance
Replaces faulty or outdated power units
Model: HK401-11FP

HP ProLiant DL380G5 1,000W Power Supply Unit for $76

Tue, 22 Sep 2026 23:02:04 -0400

Anyone running an older HP ProLiant DL380G5 server as a replacement part or backup will want this on hand, since finding a compatible 1,000W unit gets harder as the hardware ages. Newegg carries it as a straightforward way to keep aging server hardware running without hunting through third-party listings of uncertain quality. Buy Now at Newegg

Features

1000W power capacity
Model: 379123-001

HP Z230 400W Power Supply Unit for $266

Tue, 22 Sep 2026 23:01:36 -0400

This power supply is built specifically for HP Z230 workstations, so it's the one to grab if you need an exact replacement rather than a universal PSU that requires modding. Anyone running that machine for CAD, video editing, or other demanding workloads will want the correct wattage and connector layout HP originally spec'd for it. Buy Now at Newegg

Features

400W total power output
Compatible with HP Z230 C-MT systems
Model: 704427-001

300W Switching Power Supply for $147

Tue, 22 Sep 2026 23:01:09 -0400

Anyone building or repairing a desktop, running a home lab, or powering DIY electronics projects needs a stable DC source like this, since it converts standard AC input into consistent 300W output without the guesswork of rigging up a workaround. Buy Now at Newegg

Features

300W power output
Model: PSR300-12A

DC ATC160W Server Power Supply for $18

Tue, 22 Sep 2026 23:00:21 -0400

Data center operators managing server rack setups will want this for its ATC160W spec, which handles power delivery for demanding server hardware without needing a custom solution. Newegg carries this one if you're building or maintaining server infrastructure and need a reliable, purpose-built supply rather than a general-use unit. Buy Now at Newegg

Features

Compatible with ATX 24-pin and 4P 6P inputs
Designed for server power supply switchboards
Compact MINI power supply form factor
Standardized DC ATC160w power output
Reliable server-grade power delivery

R1BA2751A 750W Server Power Supply for $197

Tue, 22 Sep 2026 22:59:18 -0400

Data center admins and homelab builders running redundant server setups will want this on hand, since 750W supplies like this are typically sourced as exact replacements rather than general-purpose parts. Check Newegg's listing for compatibility with your specific server chassis before ordering. Buy Now at Newegg

Features

750W power output
APM12V0102 form factor
Model: R1BA2751A

HP Z440 700W Power Supply for $320

Tue, 22 Sep 2026 22:59:07 -0400

Anyone running an HP Z440 workstation and dealing with a failing or underpowered stock supply will want this as a direct replacement rather than hunting for a generic compatible unit. Buy Now at Newegg

Features

700W power capacity
HP Z440 workstation compatibility
Model: 719795-003

FSP 400W ATX Power Supply for $336

Tue, 22 Sep 2026 22:58:54 -0400

Older desktops or budget rebuilds where you just need a reliable, no-frills PSU without paying for wattage you'll never use. Buy Now at Newegg

Features

400W power output
ATX form factor
FSP switching power supply technology
Model: FSP400-60WSA

Powerup 550W Server Redundant Power Supply for $181

Mon, 21 Sep 2026 23:18:28 -0400

Redundant power supplies like this one are worth having if you're running a server that can't afford downtime, since a second unit keeps things running if one fails. At 550W, it suits small to mid-sized server builds rather than heavy enterprise loads, and Newegg's price makes it a reasonable add-on for a home lab or small business setup. Buy Now at Newegg

Features

550W power output
Redundant power design
Model: GW-CRPS550

495W Power Supply Kit for Dell PowerEdge R730 R630 R530 T630 for $101

Mon, 21 Sep 2026 23:18:07 -0400

Server rack owners running a Dell PowerEdge R730, R630, R530, or T630 will want this on hand for replacing a failed unit or adding redundancy without waiting on OEM lead times. Buy Now at Newegg

Features

495W power output capacity
Compatible with PowerEdge R730, R630, 730XD, R530, T630
Reliable switching power supply architecture
Includes essential power connectivity components
Model: D495E-S1

Lenovo M70a Gen3 and M90a Gen3 180W Power Supply Unit for $77

Mon, 21 Sep 2026 23:17:39 -0400

Anyone running a Lenovo M70a or M90a Gen3 desktop that's lost power or is due for a replacement will want to match specs exactly, and this unit is built specifically for those two models. It's a straightforward fix if your original PSU has failed or you're setting up a spare machine. Buy Now at Newegg

Features

180W power supply
Compatible with M70a Gen3
Compatible with M90a Gen3
Model: HKF1801-3D

NPS-200PB-73 Power Supply for Dell GX100 GX110 GX200 for $146

Mon, 21 Sep 2026 23:17:30 -0400

Anyone maintaining or repairing an older Dell GX100, GX110, or GX200 desktop will want this on hand, since original power supplies for these systems are getting harder to source. It's a straightforward replacement part rather than an upgrade, so it suits repair jobs where matching the original specs matters more than adding new features. Buy Now at Newegg

Features

Model: NPS-200PB-73
Model: PS-5201-7D

Dell Optiplex XE2 SFF 315W Power Supply Unit for $202

Mon, 21 Sep 2026 23:16:49 -0400

Newegg sells the Dell OptiPlex XE2 SFF 315W Power Supply Unit for anyone whose small form factor system needs a factory-spec replacement rather than a generic swap-in. It's built to Dell's exact specifications, so fit and connector compatibility won't be a guessing game like they can be with third-party units. Buy Now at Newegg

Features

315W power output
Compatible with Optiplex-XE 2 SFF
8Pin, 4Pin, 6Pin power connectors
Model: VX372

500W ATX PC Power Supply for $70

Mon, 21 Sep 2026 23:16:37 -0400

Reliable pick for a budget or mid-range build where you don't need extra wattage headroom for high-end graphics cards, just steady, consistent power for everyday components. Buy Now at Newegg

Features

500W power output
12V ATX form factor
SLI and PCI-E support
12cm cooling fan

Supermicro 1,400W 1U Redundant 80 Plus Gold Power Supply Unit for $213.70

Mon, 21 Sep 2026 23:16:32 -0400

Data center admins and server builders needing failover protection will appreciate the redundant design, which keeps systems running if one power supply fails, and the 80 Plus Gold rating helps keep energy costs down during continuous operation. Buy Now at Newegg

Features

1400W power capacity
1U compact form factor
Redundant power system
80 Plus Gold efficiency
Model: PWS-1K41P-1R

HP 1,400W Gen9 Power Supply Unit for $392

Mon, 21 Sep 2026 23:16:23 -0400

Datacenter admins replacing or scaling out HP Gen9 server hardware will want this on hand, since matching the OEM power supply spec keeps redundancy and airflow design intact. Newegg carries it for situations where sourcing directly from HP isn't practical or fast enough. Buy Now at Newegg

Features

1400W power capacity
Model: 720620-B21