S-Union L08261-004 PCH023 180W Power Supply - Compatible HP

In this review the S-Union L08261-004 PCH023 180W Power Supply is evaluated for owners of small form factor HP desktops who need a direct, low-risk replacement. The bottom line: it is a straightforward, well-tested 180W replacement for specific HP Pavilion 590 and ProDesk G5 models, offering the correct connector layout and a guaranteed warranty that makes installation confidence the main reason to buy. The reviewer found it reliable out of the box and especially suitable when the original unit fails or when a compatible, brand-new PSU is required.

Key Features

• Compatibility: Built to match HP Pavilion 590 and ProDesk G5 series part numbers so users can replace a failed unit without modifying the chassis.
• Power Output: Provides up to 180W DC output, supplying steady power for typical SFF desktop components in the supported models.
• Connector Layout: Includes the 4+4+7 (3-wires) pin connector arrangement used by the listed HP models, avoiding adapter hassles.
• Wide Input Range: Accepts 100-240V~, 50-60Hz at 2.3A which makes it suitable for different regional mains voltages without extra hardware.
• Quality Control: Each unit is tested before shipping, offering buyers a new, working replacement rather than a refurbished or salvaged part.
• After-sale Support: Comes with an 18-month warranty and seller support to address fitment or damage issues after delivery.

Who It's For

This power supply is aimed at owners of HP Pavilion 590 and HP ProDesk G5 small form factor desktops whose original PSU has failed or who need a guaranteed-compatible replacement. IT technicians and home upgraders who prefer a tested, brand-new unit with a clear connector layout will appreciate the straightforward swap.

It is not for users of full-size towers that require higher wattage or different connector types, nor for systems that demand modular cabling or advanced power headroom for heavy graphics upgrades.

Pros & Cons

Pros

• Direct compatibility with multiple HP part numbers simplifies replacement and reduces installation errors.
• 180W maximum output matches the power profile expected by the supported SFF desktops.
• Wide input voltage range and factory testing give confidence in immediate operation after installation.
• 18-month warranty provides meaningful after-sale protection for buyers.

Cons

• Limited to 180W and the specific connector type, so it may not suit higher-power upgrades or non-listed models.
• Information on noise or efficiency ratings is not provided, so expectations should be conservative for thermals and acoustic performance.

Specifications

Brand	S-Union
Model / Part Numbers	L08261-004, PCH023, L08261-006, L70042-004, PCG003
Max DC Output	180W
Input	100-240V~, 50-60Hz, 2.3A
Connector	4+4+7 (3 wires) pin
Compatibility	HP Pavilion 590 series, HP ProDesk G5 Pavilion 590-p0XXX, 590-P0097CB
Warranty	18 months

Our Verdict

The S-Union L08261-004 PCH023 180W Power Supply is a practical, cost-effective replacement for the specific HP Pavilion 590 and ProDesk G5 SFF desktops. It offers correct connectors, a tested new unit, and a long warranty, making it a sensible buy for anyone who needs a reliable swap-in PSU without chasing original OEM stock. Users needing more power or documented efficiency figures should look elsewhere.

Frequently Asked Questions

Will this fit my HP Pavilion 590?
It is designed for Pavilion 590 and listed ProDesk G5 models; check the part numbers (L08261-004, PCH023, etc.) and the 4+4+7 connector to confirm fit.

Is this a new or refurbished unit?
The listing indicates each unit is 100% brand new and tested before shipping.

What warranty is included?
The product includes an 18-month warranty with seller support for fitment or damage issues.