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

Etasis 530W Disk Array Power Supply for $144

Thu, 20 Aug 2026 00:12:13 -0400

Data centers and NAS enthusiasts running redundant storage arrays need power supplies built for that specific hardware footprint, and this 530W unit from Newegg fits disk array enclosures where a standard ATX supply won't. Buy Now at Newegg

Features

530W power output capacity
Redundant power supply design
Model: IFRP-532NF

Dell Optiplex 200W Power Supply Unit for $51

Thu, 20 Aug 2026 00:11:52 -0400

Anyone maintaining or upgrading a Dell Optiplex tower will want a PSU that matches the original spec exactly, since third-party replacements don't always fit the proprietary connectors. Newegg carries this 200W unit as a direct replacement, which saves you the guesswork of hunting down compatible wattage and pinout. Buy Now at Newegg

Features

200W power supply capacity
Compatible with Optiplex 3050-7070 series
Reliable 200-240V power delivery
Original equipment power unit replacement
Model: 2JWJ3

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

Tue, 18 Aug 2026 23:58:26 -0400

This dock is worth a look if your gaming rig has an Alienware-compatible graphics card that's outgrown your current power supply's capacity. It's built specifically for Dell's ecosystem, so double-check compatibility with your setup before buying from Newegg. Buy Now at Newegg

Features

460W power supply capacity
Dell Alienware video card dock compatibility
Genuine replacement component
Model: HU460AM-00
Part number: C3CMT

FSP 300W ATX Switching Power Supply for $316

Tue, 18 Aug 2026 23:47:09 -0400

Aging desktop builds or budget PC projects often just need a reliable, no-frills power source, and this 300W unit covers standard ATX requirements without the extra cost of higher-wattage supplies you won't use. Buy Now at Newegg

Features

300W power output
ATX form factor
-48V input voltage
Switching power supply architecture
Model: FSP300-60DL

Powerup 400W 1U Flex Power Supply for $440

Tue, 18 Aug 2026 23:47:06 -0400

Server closets and small NAS builds are where this one makes sense, since a compact 1U flex form factor is built for tight spaces where a standard ATX supply won't fit. Buy Now at Newegg

Features

400W power output
1U Flex form factor
Silent operation
Compatible with ENP-7140B
Model: POWERUP 400W

HP 600W Power Supply for ENVY 800/810 Phoenix Series for $161

Tue, 18 Aug 2026 23:46:52 -0400

This power supply is a straightforward replacement for HP Envy 800/810 or Phoenix desktop owners whose original unit has failed or can't keep up with added components, without needing to hunt down an exact OEM part elsewhere. Buy Now at Newegg

Features

600W power capacity
Compatible with HP ENVY H8 H9 series
Model: 633186-001

400W Flex 1U Computer Power Supply for $235

Tue, 18 Aug 2026 23:46:50 -0400

Anyone building or repairing a slim rackmount system will want this on hand, since 1U cases need a flex-style supply to fit the low-profile chassis. It's a straightforward replacement part rather than an upgrade, so it suits server and NAS builders more than gaming rigs. Buy Now at Newegg

Features

400W power output
1U compact form factor
FLEX ITX design for small desktop PCs
Compatible with low-power systems and cash registers

FSD062 450W Server Power Supply for $181

Tue, 18 Aug 2026 23:46:41 -0400

Data center techs replacing a failed server component will appreciate that this power supply matches OEM specs, so it slots in without reconfiguring the rest of the system. Buy Now at Newegg

Features

450W power output
Model: 00HV188

Supermicro 1,000W/1,200W 80 Plus Gold 1U Redundant Power Supply for $227

Tue, 18 Aug 2026 23:46:21 -0400

Redundant power supplies matter for servers and NAS setups running mission-critical workloads, since this unit keeps things running even if one module fails, and the 80 Plus Gold rating cuts down on wasted energy over time. Buy Now at Newegg

Features

1000W/1200W power output
80 Plus Gold efficiency
1U form factor
Redundant power supply design
Model: PWS-1K21P-1R

Oiaglh 600W 1U Switching Power Supply for Supermicro I610-G10 for $217

Tue, 18 Aug 2026 23:46:05 -0400

Anyone running a Supermicro I610-G10 rig needs a spec-matched replacement, and this switching supply steps in without forcing you to modify the chassis or wiring. Buy Now at Newegg

Features

600W power output
1U form factor
Supermicro I610-G10 compatibility
Model: PWS-605P-1H

HP 240W Small Form Factor Power Supply for $128

Tue, 18 Aug 2026 23:45:58 -0400

Small form factor PCs often ship with weak or failing power supplies, so this HP 240W unit is a straightforward replacement if you're trying to revive an older SFF build rather than replace the whole machine. Newegg's listing makes it easy to check compatibility before you buy, which matters since these compact supplies aren't interchangeable with standard ATX units. Buy Now at Newegg

Features

240W power capacity
SFF form factor
Model: 460889-001

Inspur NF290D2/NF5220 550W Server Power Supply for $120.20

Tue, 18 Aug 2026 23:45:48 -0400

Server admins keeping older Inspur rack systems running will want a matching PSU on hand, since sourcing OEM-spec power supplies for these models gets harder once they're out of production. Newegg carries this 550W unit if you need a direct replacement rather than a generic substitute. Buy Now at Newegg

Features

550W power output
Inspur NF290D2 compatible
Inspur NF5220 compatible
Model: EFRP-553V3
Condition: New

350W Power Supply for $224

Tue, 18 Aug 2026 23:45:41 -0400

Anyone replacing a failing PSU in a basic office build or media center should find this covers the essentials without paying for wattage you won't use, since 350W handles low-power setups like integrated graphics or single low-draw cards. Buy Now at Newegg

Features

350W power supply
Model: PSU-350-AC

ATX 2,800W Mining Power Supply for $210

Tue, 18 Aug 2026 23:45:32 -0400

Bitcoin miners and multi-GPU rig builders will want the headroom here, since 2,800W covers heavy setups that standard consumer power supplies can't handle without stringing multiple units together. Buy Now at Newegg

Features

2800W power capacity for mining rigs
Supports 8 GPU setups
Integrated temperature control system
ATX form factor compatibility

FSP 250W SFX ATX Power Supply for $79.10

Tue, 18 Aug 2026 23:45:09 -0400

Small form factor builds need PSUs that don't hog space, and this 250W SFX unit from Newegg fits compact cases where a standard ATX power supply simply won't. Buy Now at Newegg

Features

250W power output
Compact SFX form factor
Compatible with small chassis
Reliable HTPC and desktop power
Model: FSP250-55SFX

DPS-500AB-3 500W Server Power Supply for $125

Tue, 18 Aug 2026 23:45:01 -0400

This power supply suits anyone building or maintaining a server rig, since it's designed for continuous, high-load operation rather than casual desktop use. Newegg carries it as a standalone replacement part, making it a straightforward option if you need to swap out a failed unit without buying a whole new system. Buy Now at Newegg

Features

500W power output
Model: DPS-500AB-3

1,800W Modular ATX Power Supply for $190

Tue, 18 Aug 2026 23:44:50 -0400

Anyone building a high-end rig with power-hungry GPUs or planning multiple graphics cards will appreciate the 1,800W headroom, and the modular cables mean you're only running what you actually need. Newegg has this listed with the efficiency certifications that matter if you want lower electricity costs over the long run. Buy Now at Newegg

Features

1800W peak power output
1600W continuous rated power
Fully modular cable design
ATX form factor compatibility
High-performance gaming power supply

1,800W Mining Power Supply Unit for $143

Tue, 18 Aug 2026 23:44:49 -0400

This power supply suits anyone running a rig of multiple GPUs for mining or heavy compute tasks, where you need consistent high-wattage output that a standard desktop PSU can't reliably handle. Buy Now at Newegg

Features

1800W power capacity
Designed for Bitcoin mining hardware
Supports 6-pin ASIC connectivity

AlmostPower 200W FSP200-50SHNCA Power Supply for $191

Tue, 18 Aug 2026 23:44:31 -0400

This power supply suits anyone building or repairing a budget PC where a reliable, no-frills 200W unit gets the job done without paying for capacity you don't need. Newegg carries the FSP200-50SHNCA for those wanting a straightforward replacement part from an established manufacturer. Buy Now at Newegg

Features

200W power output
Model: FSP200-50SHNCA

Vapel Server Switching Power Supply for $128

Tue, 18 Aug 2026 23:44:31 -0400

Anyone running a home server or NAS setup benefits from swapping in a dedicated switching power supply like this, since it's built to handle sustained loads more reliably than a standard consumer PSU. Buy Now at Newegg

Features

Model: RG-M6220-AC460E-F
VAPEL server switching power supply
High-efficiency power conversion for server infrastructure
Reliable server-grade power delivery
Engineered for enterprise-level server hardware