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

255W Power Supply for Dell Optiplex 3020/7020/9020 SFF for $121

Tue, 04 Aug 2026 23:12:36 -0400

A direct replacement for the Dell Optiplex 3020, 7020, and 9020 SFF towers, which use a proprietary form factor that standard ATX power supplies won't fit — useful if your unit is shutting down unexpectedly or the original PSU has failed. Buy Now at Newegg

Features

255W power supply output
Compatible with Opti-plex 3020, 9020, 7020 SFF
Model: T4GWM

Power Supply LES301A for $31

Tue, 04 Aug 2026 23:11:24 -0400

A reliable pick if your current power supply has failed and you need a straightforward replacement without a lot of extra features or overhead capacity. Buy Now at Newegg

Features

Model: LES301A

Eltek 1,000W 24V Power Supply for $418

Tue, 04 Aug 2026 23:11:21 -0400

Designed for telecom and industrial applications, this 1,000W unit outputs 24V DC, which suits anyone running server equipment, radio systems, or other gear that needs stable, high-wattage DC power rather than a standard AC supply. Buy Now at Newegg

Features

1000W power capacity
24V output voltage
Eltek SMPS architecture
Model: 241113.521

FSP 800W Switching Power Supply for Inspur for $901.20

Tue, 04 Aug 2026 23:11:15 -0400

Newegg has this FSP 800W switching power supply listed as a replacement unit for Inspur servers, making it a straightforward option if you're maintaining or repairing Inspur rack hardware and need a compatible OEM-style PSU without sourcing directly from the manufacturer. Buy Now at Newegg

Features

800W power output
FSP800-20ERM switching power supply
Model: FSP800-20ERM

Dell 2,000W Platinum Server Power Supply for $352

Tue, 04 Aug 2026 23:11:15 -0400

A high-wattage redundant power supply swap or server build is where this fits, giving you 2,000W of Platinum-rated efficiency in a standard form factor that works with compatible Dell server chassis. Buy Now at Newegg

Features

2000W output capacity
Platinum efficiency rating
Compatible with PowerEdge R730 R630 R530 R830 R930 C4130
Model: D2000E-S2
Model: DPS-2000EB-2A

Sever Power Supply 7001490-J000 for $117

Tue, 04 Aug 2026 23:10:45 -0400

Rack-mounted servers and workstations need reliable power delivery, and a replacement server PSU like this is the kind of part you're hunting for when an existing unit fails and downtime isn't an option. Newegg has this listed if you're sourcing spares for compatible hardware. Buy Now at Newegg

Features

Model: 7001490-J000
74Y9082
74Y5985
74Y8677
00FW424

BenQ RL2755 Power Supply Board for $58.10

Tue, 04 Aug 2026 23:10:45 -0400

A replacement power supply board for the BenQ RL2755 monitor, useful if your display has stopped powering on and you'd rather repair it than replace the whole unit. Buy Now at Newegg

Features

Model: RL2755HM

180W PC Power Supply for HP Server for $49

Tue, 04 Aug 2026 23:09:17 -0400

A straightforward option if your HP server needs a replacement PSU and you want to stick with a wattage that suits low-to-mid-range workloads without overpaying for headroom you won't use. Buy Now at Newegg

Features

180W power output
14-pin and 4-pin connector support
Model: PS-3181-03

Phoenix Contact Mini-PS 24V Power Supply for $260.90

Tue, 04 Aug 2026 23:09:09 -0400

Designed for industrial and automation setups, this 24V DIN rail-mountable power supply from Phoenix Contact is a reliable choice if your control cabinet or PLC system needs a compact, dedicated power source. Buy Now at Newegg

Features

Input voltage 100-240VAC
Output 24VDC
Model: 2938840

Dell S2721NX Power Supply Board 748.A3E01.0011 for $43

Tue, 04 Aug 2026 23:08:46 -0400

A useful find if you need to replace a failed power supply board in a Dell S2721NX monitor, since sourcing internal replacement parts for specific monitor models can be tricky to track down at a reasonable price. Buy Now at Newegg

Features

Model: S2721NX

Dell OptiPlex 7010 9010 Small Form Factor Power Supply for $81

Tue, 04 Aug 2026 23:08:42 -0400

Newegg has this replacement power supply listed for those who need to revive or repair a Dell OptiPlex 7010 or 9010 SFF desktop rather than replacing the whole unit, which can save a fair amount over buying a newer machine. Buy Now at Newegg

Features

Compatible with OptiPlex 7010, 9010 SFF systems
100% tested for reliable performance
Model: AC240ES-00

Corsair RMe Series RM850e 850W 80 PLUS Gold Fully Modular ATX 3.1 Power Supply for $135

Tue, 04 Aug 2026 22:54:48 -0400

The RM850e is a solid pick if you're building or upgrading a PC and want a fully modular unit, meaning you only connect the cables you actually need, which keeps cable management clean. At $135, it's $20 off the list price and includes ATX 3.1 support for the latest GPU power connectors. Buy Now at Best Buy

Features

Cybenetics Gold efficiency for reliable power
Fully modular cables simplify PC builds
ATX 3.1 and PCIe 5.1 compliant
Industrial-grade 105C-rated capacitors
Compact 140mm design fits modern cases

Corsair RMe Series RM1200e 1,200W 80 Plus Gold Modular Power Supply for $235

Tue, 04 Aug 2026 22:54:36 -0400

A 1,200W power supply at this price point suits builders running high-end GPU setups, dual-GPU configurations, or systems with heavy overclocking headroom, and the fully modular design keeps unused cables out of the case. At $235, this is at list price with no current discount. Buy Now at Best Buy

Features

80 PLUS Gold efficiency for power savings
ATX 3.1 standard compliant
Industrial-grade 105C Japanese capacitors
Fully modular cables for easy installation
Compact 150mm length fits most PC cases

Corsair RMe Series RM1000e 80 PLUS Gold Fully Modular ATX Power Supply for $190

Tue, 04 Aug 2026 22:54:29 -0400

Rated at 1000W with 80 PLUS Gold efficiency and a fully modular cable setup, this PSU suits high-end builds where you want clean power delivery and the flexibility to run only the cables your system actually needs, priced at $190 with no discount off list. Buy Now at Best Buy

Features

Cybenetics Gold efficiency for reliable power
Fully modular cables simplify PC builds
ATX 3.1 and PCIe 5.1 compliant
Industrial-grade 105C-rated capacitors
Compact 140mm design fits modern cases

Corsair RMe Series RM1000e 1,000W 80 Plus Gold Modular Power Supply for $152

Tue, 04 Aug 2026 22:54:29 -0400

Aimed at high-end PC builders running power-hungry GPUs or multi-drive setups, the RM1000e delivers 1,000W of 80 Plus Gold-certified output with a fully modular cable system so you only connect what you need. At $152, that's $48 off the $200 list price. Buy Now at Best Buy

Features

Cybenetics Gold efficiency for reliable power
Fully modular cables simplify PC builds
ATX 3.1 and PCIe 5.1 compliant
Industrial-grade 105C-rated capacitors
Compact 140mm design fits modern cases

Corsair RMe Series RM850e 850W 80 Plus Gold Modular Power Supply for $120

Tue, 04 Aug 2026 22:54:23 -0400

Modular wiring means you only connect the cables your build actually needs, which keeps airflow cleaner and cable management simpler inside the case. At $120, that's $25 off the $145 list price for an 850W, 80 Plus Gold-rated unit from Corsair's RMe line. Buy Now at Best Buy

Features

Cybenetics Gold efficiency for reliable power
Fully modular cables simplify PC builds
ATX 3.1 and PCIe 5.1 compliant
Industrial-grade 105C-rated capacitors
Compact 140mm design fits modern cases

Corsair RMe Series RM750e 80 Plus Gold Fully Modular ATX 3.1 Power Supply for $90

Tue, 04 Aug 2026 22:54:07 -0400

Solid pick for a mid-range PC build where you want clean cable management and future-proofing via the ATX 3.1 connector, which supports next-gen GPUs without an adapter. At $90, that's $25 off the $115 list price for a fully modular, 80 Plus Gold-rated 750W unit. Buy Now at Best Buy

Features

Cybenetics Gold efficiency for reliable power
Fully modular cables simplify PC builds
ATX 3.1 and PCIe 5.1 compliant
Industrial-grade 105C-rated capacitors
Compact 140mm design fits modern cases

Corsair HXi Series 1000W 80 Plus Platinum Fully Modular ATX Power Supply for $290

Tue, 04 Aug 2026 22:52:21 -0400

A fully modular PSU means you only connect the cables your build actually needs, which keeps airflow cleaner and cable management simpler — useful whether you're building a high-end gaming rig or a workstation that draws serious wattage. The 1000W output with 80 Plus Platinum efficiency rating puts it at the upper end of what most desktop builds would ever need, and at $290 it's at list price with no current discount. Buy Now at Best Buy

Features

80 PLUS Platinum certified efficiency
ATX 3.0 and PCIe 5.0 compliant
Customizable fan curves via iCUE software
Reliable Japanese 105°C-rated capacitors
Zero RPM silent fan mode

1,000W Chia Mining Power Supply for $168.90

Tue, 04 Aug 2026 22:11:15 -0400

A purpose-built option for chia farmers running multiple hard drives, where stable, high-wattage power delivery matters more than the flashy specs you'd find on a gaming-focused PSU. Buy Now at Newegg

Features

1000W power capacity for high-demand mining rigs
25 SATA interfaces for massive hard drive arrays
Supports dual CPU configurations for increased processing power
Powers two graphics cards simultaneously
ATX form factor for standard mining chassis compatibility

Juniper JPSU-920-AC-AFO 920W AC Power Supply Unit for $600.10

Mon, 03 Aug 2026 23:27:30 -0400

Rack-mount networking hardware like Juniper switches and routers often requires purpose-built power supplies, and this 920W unit is designed as a direct replacement or spare for compatible Juniper systems rather than a general-purpose PSU. Worth keeping in mind if you're maintaining or expanding a Juniper network deployment and need a manufacturer-matched power supply. Buy Now at Newegg

Features

920W AC power capacity
High-efficiency power conversion
Front-to-back cooling airflow
Designed for enterprise network infrastructure
Model: JPSU-920-AC-AFO