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

Juniper PWR-MX80-AC-S AC Power Supply for $140

Wed, 05 Aug 2026 23:16:44 -0400

Rack-mounted networking gear like the MX80 router tends to need replacement or spare power supplies over time, and sourcing OEM Juniper hardware at a reasonable price isn't always straightforward. This is a good option if you're maintaining or expanding a Juniper MX80 deployment and want a manufacturer-spec AC power supply rather than a third-party alternative. Buy Now at Newegg

Features

AC power supply for MX80 3D Universal Edge Router
Internal form factor
Model: PWR-MX80-AC-S

750W Server Power Supply for HP DL380 G6 G7 for $150

Wed, 05 Aug 2026 23:16:25 -0400

Designed specifically for HP ProLiant DL380 G6 and G7 servers, this is a straightforward replacement option if your current PSU has failed or you need a redundant unit without going through HP's official supply chain pricing. Buy Now at Newegg

Features

750W power output
Designed for HP DL380 G6 G7 servers
Model: 511778-001
Model: DPS-750RB A
Model: HSTNS-PL18

Lenovo 510S-07ICB 180W Power Supply Unit for $56

Wed, 05 Aug 2026 23:16:16 -0400

A straightforward replacement option for Lenovo 510S-07ICB desktop owners dealing with a failed or underpowered PSU, since proprietary form factors mean you can't just swap in any standard unit. Buy Now at Newegg

Features

180W power supply capacity
6+4PIN connector configuration
Model: 510S-07ICB

Asus ROG Loki 1,200W Titanium SFX-L Power Supply for $323

Wed, 05 Aug 2026 23:15:58 -0400

The ROG Loki SFX-L is aimed at small form factor PC builders who need serious wattage, as 1,200W in the SFX-L format gives you headroom for high-end components without the bulk of a full ATX unit. Titanium efficiency rating means less power wasted as heat, and at $323, it's $17 off the $340 list price. Buy Now at Newegg

Features

1200W 80+ Titanium efficiency
ATX 3.0 and PCIe 5.0 compatible
Fully modular cabling design
120mm PWM ARGB fan with Aura Sync
Model: ROG-LOKI-1200P-SFX-L-GAMING

H240AS-00 240W Power Supply for OptiPlex 390 790 SFF for $76

Wed, 05 Aug 2026 23:11:22 -0400

A direct replacement for the Dell OptiPlex 390 and 790 SFF desktop towers, which use a proprietary form factor that standard ATX power supplies won't fit. Buy Now at Newegg

Features

Model: H240AS-00

Jung Linear Stabilized Dual Power Supply for $45

Wed, 05 Aug 2026 23:10:40 -0400

A dual-channel linear regulated power supply is the kind of bench tool that matters when you're working on audio circuits, RF projects, or any application where switching noise from a standard PSU would interfere with your results. Buy Now at Newegg

Features

JUNG Linear Stabilized Dual Power Supply
Low noise performance for DAC and Pre-Amplifiers

Enhance ENP-7020B 200W 1U NAS Switching Power Supply for $242

Wed, 05 Aug 2026 23:09:58 -0400

A compact 1U form factor and 200W output make this a practical replacement or upgrade option for NAS builds where space is tight and you need a power supply that fits a rackmount or small enclosure without extra bulk. Buy Now at Newegg

Features

200W power capacity
Small 1U form factor
Enhanced NAS power efficiency
Reliable switching power supply
Model: ENP-7020B

Corsair HX1200i 1,200W 80 Plus Platinum Fully Modular ATX Power Supply for $300

Wed, 05 Aug 2026 22:47:49 -0400

Aimed at high-end PC builders running power-hungry GPUs or multi-GPU setups, the HX1200i delivers 1,200W of output with 80 Plus Platinum efficiency and a fully modular cable design that keeps your build clean. At $300, that's $45 off the $345 list price. Buy Now at Best Buy

Features

80 PLUS Platinum efficiency for power savings
ATX 3.1 and PCIe 5.1 compliant connections
iCUE software for digital power monitoring and control
Zero RPM mode for silent operation
Reliable 105°C Japanese capacitors with ten year warranty

Corsair HXi Series HX1500i 80 Plus Platinum Fully Modular ATX 3.1 Power Supply for $350

Wed, 05 Aug 2026 22:47:41 -0400

The HX1500i is a 1500W fully modular unit with 80 Plus Platinum efficiency and ATX 3.1 support, which means it has a native 16-pin connector for current-gen GPUs without needing an adapter. At $350, that's $40 off the $390 list price. Buy Now at Best Buy

Features

80 PLUS Platinum certified efficiency
ATX 3.1 and PCIe 5.1 compliant
Digital monitoring with CORSAIR iCUE software
Zero RPM silent fan mode
Ten-year manufacturer warranty

Corsair RM750e 750W 80 Plus Gold Fully Modular ATX Power Supply for $90

Wed, 05 Aug 2026 22:45:51 -0400

The RM750e is a solid choice for a mid-to-high-end PC build where you want a fully modular PSU, meaning you only connect the cables you actually need, which keeps your case cleaner. At $90, that's $35 off the $125 list price for a Gold-rated unit from one of the more trusted names in PC power supplies. 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

T.F.SKYWINDINTL 400W 80Plus 1U Power Supply for $78

Wed, 05 Aug 2026 22:41:16 -0400

A 1U form factor makes this a niche pick suited for compact rackmount server builds or small form factor cases where a standard ATX PSU simply won't fit, and the 80Plus certification means it meets a baseline efficiency standard you'd want for any always-on system. Buy Now at Newegg

Features

400W power output
80 Plus efficiency rating
Active PFC support
Compact 1U Flex ITX form factor
Model: T.F.SKYWINDINTL 400W

Juniper Networks 400W AC Power Supply for $594

Tue, 04 Aug 2026 23:21:28 -0400

A solid pickup if you need a replacement or spare power supply for a Juniper Networks device, as OEM networking hardware components like this tend to be harder to source at a reasonable price outside of enterprise channels. Buy Now at Newegg

Features

400W power capacity
Juniper Networks proprietary hardware
Model: JPSU-400W-AC

Golden Field 500W Power Supply for $115

Tue, 04 Aug 2026 23:18:46 -0400

A budget-friendly option for basic desktop builds or older systems that don't require high wattage, this 500W unit covers standard configurations without the overhead of a modular or higher-tier PSU. Buy Now at Newegg

Features

500W rated power output
600W peak power capacity
Supports 1660 and 680GTX graphics cards
Golden Field original power supply

Networking RackSwitch G7000 Redundant Power Supply for $324.50

Tue, 04 Aug 2026 23:15:10 -0400

A redundant power supply for the RackSwitch G7000 is a straightforward upgrade for data center or server room setups where unplanned downtime isn't an option. Newegg has it listed if you're maintaining or expanding an existing G7000 deployment and need a spare or replacement unit. Buy Now at Newegg

Features

Redundant power supply system
Model: G7000

Emacs 400W Switching Power Supply for $477

Tue, 04 Aug 2026 23:14:30 -0400

A solid option if you're building or repairing a system on a budget and need a reliable replacement PSU without spending much. Buy Now at Newegg

Features

400W power output
Switching power supply efficiency
Model: R2Z-6400P-R

12V 6A 70W Isolated Power Supply Board for $24

Tue, 04 Aug 2026 23:14:08 -0400

A straightforward pick for electronics hobbyists or DIYers who need a reliable isolated 12V power source for bench projects, small appliances, or custom builds where clean, regulated output matters. Buy Now at Newegg

Features

12V 6A 70W power output
110-245V AC input range
Isolated power supply architecture
Buck module voltage regulation

400W Desktop Power Supply for Z230 CMT for $64

Tue, 04 Aug 2026 23:13:55 -0400

A straightforward replacement or upgrade option for HP Z230 CMT workstation owners who need a compatible 400W unit without sourcing directly from HP. Buy Now at Newegg

Features

400W power output
Z230 CMT workstation compatibility
Model: 704427-001
Model: 705045-001
Model: DPS-400AB-19 A

400W Flex ATX Modular Power Supply for $41

Tue, 04 Aug 2026 23:13:48 -0400

A modular cable design means you only connect the cables your build actually needs, which keeps things tidy in compact or small form factor cases where space is tight. Buy Now at Newegg

Features

400W power capacity
Full modular cable design
Low noise operation
Compatible with 1U Flex ITX chassis
Model: AB01

Dell 460W Power Supply Unit for 3060/3080/3881/5060/5090/3471/3671 for $95

Tue, 04 Aug 2026 23:13:06 -0400

A direct replacement option if your Dell OptiPlex 3060, 5060, or similar tower's original PSU has failed and you'd rather swap in an OEM-matched unit than source a generic alternative. Buy Now at Newegg

Features

460W power output
6+4+4Pin connector configuration
Model: L460EBM-00
Model: H460EBM-00
Model: HU460AM-01

HP DL380 G5 800W Server Power Supply for $67

Tue, 04 Aug 2026 23:12:41 -0400

A server power supply replacement for anyone maintaining or refurbishing HP ProLiant DL380 G5 hardware, where sourcing OEM-compatible parts can be tricky. Buy Now at Newegg

Features

Server power supply unit
Model: 379123-001
Model: 403781-001