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

Dell 240W Power Supply Unit for $143

Mon, 17 Aug 2026 23:36:09 -0400

Anyone running a power-hungry desktop build or replacing a failing PSU in a Dell system will want the specs to match exactly, and this 240W unit is built to Dell's factory specifications for a proper fit. Newegg carries it for those needing a straightforward, compatible replacement without hunting down a used part. Buy Now at Newegg

Features

240W power capacity
Supports Optiplex 3040 3650 5040 7040
Compatible with Vostro 3250 3650 3653
Model: H62JR
OEM replacement for Dell systems

180W 4-Pin Power Supply for HP 600 800 G3 G4 for $67

Mon, 17 Aug 2026 23:35:28 -0400

This power supply is a direct fit for HP's 600/800 G3 and G4 desktop lineup, so it's a practical option if your machine's original PSU is failing and you want an exact match rather than a universal replacement. Buy Now at Newegg

Features

180W total power output
4-pin power connector
Model: D19-180P1A

Dell PowerEdge 570W Redundant Power Supply for $143

Mon, 17 Aug 2026 23:35:08 -0400

Server admins running critical workloads will want this for the redundancy alone, since a second power supply keeps things running if one fails instead of taking your whole PowerEdge box down with it. Buy Now at Newegg

Features

570W power capacity
Redundant power supply architecture
Compatible with PowerEdge T610 and R710
Model: 0RXCPH

Power Supply for ATX HK320-55AP BTX-3031 ATX-220SD for $72

Mon, 17 Aug 2026 23:34:32 -0400

Anyone maintaining or repairing older desktop systems will want a reliable ATX replacement like this on hand, since finding compatible power supplies for legacy setups gets harder every year. Newegg carries this as a straightforward drop-in option if your current unit fails and you're not looking to rebuild the whole machine. Buy Now at Newegg

Features

Model: HK320-55AP

FSP Power Supply Unit for $79

Mon, 17 Aug 2026 23:32:59 -0400

For anyone building or upgrading a PC, a reliable power supply keeps your components running steadily without the risk of sudden shutdowns or damage from voltage spikes. FSP's units are known for solid efficiency ratings and consistent performance, making them a sensible pick if you want dependable power delivery without paying a premium brand markup. Buy Now at Newegg

Features

12V LCD power output
Model: HK400-22GP

HP Pavilion 550-103la Desktop Power Supply for $80

Mon, 17 Aug 2026 23:32:15 -0400

Anyone repairing or upgrading an HP Pavilion 550-103la will want a power supply that matches the original specs exactly, and Newegg carries this one as a direct replacement so you're not guessing on compatibility. Buy Now at Newegg

Features

Model: 550-103la
Replacement power supply for HP Pavilion Desktop
Includes integrated cooling fan
Lightweight 1lb design
Neutral grey finish

PS-2751-7H 750W Server Power Supply for $84

Mon, 17 Aug 2026 23:31:20 -0400

Anyone building or repairing a server rack will want a reliable replacement PSU on hand, and the 750W capacity covers most standard server workloads without needing a bigger unit. Newegg carries this one for those who need an exact fit replacement rather than a generic aftermarket substitute. Buy Now at Newegg

Features

750W power output
Server-grade reliability
High-efficiency design
Compatible with RH1288, RH2288 V2
Model: PS-2751-7H

220W Power Supply Adapter for $110

Mon, 17 Aug 2026 23:31:16 -0400

Anyone replacing a dead adapter or building a system that needs extra headroom for peripherals will find this handles the wattage without hunting down the original manufacturer's part. Newegg's listing covers the common connector sizes, so it's worth checking compatibility against your device before ordering. Buy Now at Newegg

Features

220W power output
Model: DPS-220UB

Quanhan FSP180-50PLA 180W 1U Power Supply for $53

Mon, 17 Aug 2026 23:31:15 -0400

Anyone repairing or upgrading a 1U server chassis will want a compatible replacement on hand, and this 180W supply matches the OEM specs without the wait for a manufacturer part. Buy Now at Newegg

Features

Small 1U form factor
FSP180-50PLA power supply
Compatible with cash registers
Compatible with FLEX switches
Compatible with small servers

ASRock 650W Power Supply for $58

Mon, 17 Aug 2026 23:30:44 -0400

Anyone building or upgrading a mid-range gaming PC needs a reliable power supply, and this 650W option gives you enough headroom for a solid CPU and GPU pairing without overspending on wattage you won't use. Buy Now at Newegg

Features

650W power output
80 PLUS GOLD energy efficiency
ATX 3.1 standard compliant
120mm golf-blade cooling fan
Model: CL-650G

HP RP8400 and RP8420 Power Supply for $200

Mon, 17 Aug 2026 23:30:25 -0400

Restaurant and retail POS setups running on HP RP8400 or RP8420 terminals will want this on hand as a replacement, since keeping a spare power supply nearby means less downtime when the original fails. Newegg carries it for those needing an exact match rather than a generic substitute. Buy Now at Newegg

Features

Model: A6093-69021
Compatible with H-P RP8400 power supply
Compatible with H-P RP8420 power supply
Replacement part PPA0008
Replacement part 0957-2183

850W ATX Gaming Power Supply for $112

Mon, 17 Aug 2026 23:01:53 -0400

Building a higher-end gaming rig with a power-hungry GPU calls for headroom, and 850W gives you room to upgrade components later without swapping the whole supply out. Buy Now at Newegg

Features

850W power output
1200W peak power capacity
Supports 220V bivolt input
ATX form factor compatibility
24-pin connector support

MSI MAG A1000GL 1,000W 80+ Gold Fully Modular ATX 3.1 Power Supply for $140 + free shipping

Mon, 17 Aug 2026 17:15:46 -0400

Anyone building or upgrading a high-draw gaming rig will appreciate the 1,000W of headroom and full modular cabling, which keeps case wiring clean while easily handling power-hungry GPUs. The 80+ Gold certification and ATX 3.1 compliance also make it a future-proof choice for pairing with newer, spike-prone graphics cards. Buy Now at Amazon

Features

NVIDIA RTX 40 series compatible
ATX 3.1 ready with PCIe 5.1 connector
Fully modular design with flat cables
80 PLUS Gold efficiency certified
Active PFC power design

HPE Aruba Networking CX 6400 3,000W Power Supply for $3,899.69

Sun, 16 Aug 2026 23:53:40 -0400

Data centers running HPE Aruba's CX 6400 switch series need this power supply for redundancy or replacement, since it's built to match the chassis's exact power specs rather than working as a generic substitute. Newegg carries it for network admins who'd rather not wait on backorder from Aruba directly. Buy Now at Newegg

Features

3000W power capacity
C20 inlet connectivity
HPE Aruba Networking CX 6400 compatibility

PWS-865-PQ 865W Power Supply for $195

Sun, 16 Aug 2026 23:43:13 -0400

Anyone building or upgrading a rig with power-hungry components will want the headroom this 865W supply provides without overspending on wattage you won't use. Buy Now at Newegg

Features

865W power output
Dual 8PIN connectors
Model: PWS-865-PQ

Fiberhome PM-S50AC150W 150W Power Supply for $406

Sun, 16 Aug 2026 23:43:08 -0400

Data center techs and network admins swapping out failed PSUs will want this on hand, since it's built specifically for compatible Fiberhome equipment rather than a generic replacement. Buy Now at Newegg

Features

150W power output
Model: PM-S50AC150W

750W Platinum Hot Plug Power Supply for $156

Sun, 16 Aug 2026 23:42:40 -0400

Data center admins and server builders needing redundant power will want this for its hot-swap capability, letting you replace the unit without shutting the system down. Buy Now at Newegg

Features

750W power output
80 Plus Platinum energy efficiency
Common Slot hot-plug design
Model: 656363-B21

DPS-670BB 670W Power Supply for $108

Sun, 16 Aug 2026 23:42:28 -0400

Suits anyone rebuilding or upgrading a desktop who needs a reliable 670W supply to handle a new graphics card or extra drives without maxing out their system's power headroom. Buy Now at Newegg

Features

670W power capacity
Compatible with X3400 and X3500 servers
Model: DPS-670BB A

HP ProLiant DL380 G5 1,000W Power Supply Unit for $76

Sun, 16 Aug 2026 23:41:10 -0400

Server admins keeping older ProLiant DL380 G5 units running will want a reliable replacement PSU on hand, since this exact model is getting harder to find as the hardware ages. Buy Now at Newegg

Features

1000W power capacity
Model: 379123-001
Compatible with DL380G5 server
High-performance DPS-800GB A unit

Dell Inspiron 300W Power Supply Replacement for $80

Sun, 16 Aug 2026 23:40:20 -0400

Anyone dealing with a desktop that won't power on may just need a straightforward fix like this rather than a whole new machine, and it's built to match Dell Inspiron specs so you don't have to guess on compatibility. Buy Now at Newegg

Features

300W power output
Compatible with Dell Inspiron 518 537 545
Integrated cooling fan
USA-based seller support
Model: 300W-Inspiron-Replacement