Mean Well RSP-320-5 5V 60A 300W Power Supply - Adjustable Output

In this review the Mean Well RSP-320-5 is evaluated as a workhorse 5V DC supply aimed at audio/visual rigs, LED installations and industrial control panels that need a dependable, high-current source. The single biggest reason to buy is its combination of a 300W rating with an adjustable 4.5-5.5V output and comprehensive protections, which together make it a flexible choice for projects that require tight voltage control and reliable recovery from faults. For technicians who need a compact, certified unit with forced cooling and wide input compatibility, it is worth considering.

Key Features

• Adjustable Output Voltage: The 4.5-5.5V adjustment lets installers fine-tune the supply to compensate for cable drop or to suit sensitive electronics.
• High Power and Efficiency: With a 300W rated output and up to 83% efficiency, it can drive high-current 5V loads like LED arrays and A/V equipment without excessive waste heat.
• Wide Input Range: The 100-240VAC input works across regional power systems, making the unit suitable for international deployments or mixed-voltage environments.
• Built-in Protections: Over-voltage, over-current, short-circuit and over-temperature safeguards with automatic recovery protect connected devices and reduce downtime.
• Rugged Thermal Design: A built-in fan with automatic speed control and a rated operating range from -30C to +70C supports reliable operation in harsh or tight spaces.
• Certifications for Compliance: RoHS, UL62368-1 and EN55032/EN62368 certification ensures the supply meets common global safety and emission standards.

Who It's For

The RSP-320-5 is best for installers, system integrators and hobbyists building LED walls, industrial controllers or audio/video racks that require a steady 5V at up to 60A and the ability to tweak voltage for best performance. Its compact enclosed design and fan cooling make it practical where space is limited but continuous high current is required.

It is less appropriate for ultra-quiet home audio installations where any fan noise would be problematic, or very low-power projects that would be better served by a smaller, fanless supply. Buyers who need modular connectors or an IP-rated outdoor enclosure should consider additional housings or alternative models.

Pros & Cons

Pros

• High continuous 300W output and 60A current capacity suitable for demanding 5V loads.
• Adjustable 4.5-5.5V output allows compensation for voltage drop or sensitive devices.
• Multiple protections and automatic recovery reduce risk and service interruptions.
• Wide 100-240VAC input and safety certifications make it fit for global use.

Cons

• Built-in fan means it is not fully silent; fans may be undesirable in noise-sensitive settings.
• Enclosed format requires external mounting or protective housing for exposed installations.

Specifications

Output Voltage	Adjustable 4.5-5.5V (nominal 5V)
Output Current	60A
Rated Power	300W
Input Voltage	100-240VAC
Operating Temperature	-30C to +70C
Cooling	Built-in fan with automatic speed control
Certifications	RoHS, UL62368-1, EN55032, EN62368

Our Verdict

The Mean Well RSP-320-5 is a practical, well-protected 5V 60A power supply that offers excellent value for installations needing reliable high-current DC with adjustable voltage and global input compatibility. Technicians and integrators will appreciate the protections, efficiency and compact enclosure; choose it when you need a robust, certified supply rather than a silent or weatherproof solution.

Frequently Asked Questions

Can the output be trimmed to exactly 5.00V?
The output is adjustable across 4.5-5.5V and can be fine-tuned to approximately 5.00V, subject to measurement and load conditions.

Will the unit restart automatically after a short circuit?
Yes, the power supply includes automatic recovery from short-circuit and overload conditions to minimize downtime once faults clear.

Is this suitable for outdoor use?
The enclosed design and operating range support harsh temperatures, but the unit is not specified as weatherproof; use an appropriate enclosure for outdoor exposure.