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Rectangular metal desktop power supply unit with natural air cooling

NShi

NShi USP-500-15 500W 42A Server Chassis

SKU CH-XJ12-PB7MW

A 500 W desktop server chassis delivering 42 A with up to 90 % efficiency, PFC, remote switching and protection from -30 to +65 °C

  • Chassis TypeDesktop
  • High power density of 6.2 W/in³ enables compact server builds
  • Up to 90 % conversion efficiency cuts energy waste and heat
  • Wide -30 °C to +65 °C operating range suits harsh environments
  • Built-in PFC, remote switch and DC-OK signal simplify system integration
  • Metal chassis with natural air cooling ensures silent, reliable operation

500 W Industrial Power Unit

The NShi USP-500-15 is a 500 W AC-DC switching supply built into a desktop metal chassis. It delivers a single 15 V output rated at 42 A and is intended for test benches, measurement rigs and telecommunication equipment that need steady regulated power.

Integration and Cooling Needs

The unit uses natural air cooling through its metal case, so it requires free airflow around the enclosure and no forced-air ducting. It accepts a wide AC input with inrush-current limiting and active PFC, and provides a remote on/off switch, DC-OK signal and remote-sense terminals for rack or panel mounting.

Replacing Older Linear Supplies

This supply suits engineers swapping bulky linear units for a 90 % efficient ZVS design that runs from -30 °C to +65 °C. The jump is worth it when you need short-circuit, overload, over-voltage and over-temperature protection in a compact desktop footprint, but it is not for builds that require multiple output voltages or redundant hot-swap modules.

Highlights

  • High power density of 6.2 W/in³ enables compact server builds
  • Up to 90 % conversion efficiency cuts energy waste and heat
  • Wide -30 °C to +65 °C operating range suits harsh environments
  • Built-in PFC, remote switch and DC-OK signal simplify system integration
  • Metal chassis with natural air cooling ensures silent, reliable operation

Specifications

Chassis TypeDesktop

Questions about this item

What continuous current limit will I hit first on the 15 V rail under sustained load?

The 15 V output is rated for 42 A continuous; exceeding that trips the built-in overload protection.

How loud and hot does the metal case get when the supply runs at full load all day?

It uses natural air cooling with no fan, so it runs silent; the case temperature will rise but stays within the -30 °C to +65 °C operating range.

What external wiring or connectors must I already have to power this unit and use its remote functions?

You need an AC mains cord for the input terminals and your own wires for the DC output, remote on/off, DC-OK signal and remote sense connections.

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