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Metal desktop power supply unit with ventilation slots

NShi

NShi USP-500-48 48V 500W 10.5A Server Chassis

SKU CH-50Q8-MKKXX

A 500 W desktop power supply delivering 48 V at 10.5 A with up to 90 % efficiency, active PFC, remote control and protection from -30 to +65 °C

  • Chassis TypeDesktop
  • High power density of 6.2 W per cubic inch enables compact 500 W output
  • Up to 90 % conversion efficiency with ZVS technology reduces energy waste
  • Operates from -30 °C to +65 °C for harsh environment reliability
  • Comprehensive protection against short circuit, overload, over-voltage and over-temperature
  • Metal enclosure with natural convection cooling suits silent server and telecom deployments

500 W 48 V Server Chassis

The NShi USP-500-48 is a 500 W AC-DC power supply that delivers 48 V at 10.5 A in a desktop chassis. It uses a constant-voltage design with active PFC and achieves up to 90 % conversion efficiency through ZVS technology. A metal enclosure provides natural air cooling without internal fans. Remote switch, DC-OK signal and remote sensing functions simplify system integration.

Suited for test and telecom racks.

This unit fits test or measurement systems and telecommunications equipment that require a single 48 V rail with overload, over-voltage, over-temperature and short-circuit protection. The operating range of -30 to +65 °C supports industrial environments. Builders needing multiple output voltages, redundant hot-swap modules or a smaller form factor for blade servers should consider other solutions.

Desktop metal case with natural convection cooling

Installation consists of mounting the desktop chassis, wiring the AC input with inrush-current limiting, and connecting the DC output plus optional remote-control and sense leads. No forced-air clearance is required, but the supply must not exceed its rated current for extended periods. Ensure adequate airflow around the metal case so the convection cooling can dissipate heat within the specified temperature window.

Highlights

  • High power density of 6.2 W per cubic inch enables compact 500 W output
  • Up to 90 % conversion efficiency with ZVS technology reduces energy waste
  • Operates from -30 °C to +65 °C for harsh environment reliability
  • Comprehensive protection against short circuit, overload, over-voltage and over-temperature
  • Metal enclosure with natural convection cooling suits silent server and telecom deployments

Specifications

Chassis TypeDesktop

Questions about this item

What AC voltage range and inrush-current protection does the USP-500-48 need from the mains supply?

The unit accepts a wide AC input with built-in inrush-current limitation and active PFC, so a standard mains circuit is sufficient.

Can the 48 V 10.5 A output run in parallel with an older 24 V Mean Well supply for a 1+1 redundant setup?

The 48 V model supports even-current 1+1 sharing only with another 48 V unit; mixing voltages is not supported.

How do I confirm the USP-500-48 is delivering 48 V correctly after installation?

Monitor the DC-OK signal and use the remote-sensing terminals to verify 48 V at the load under normal operating temperature.

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