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Metal desktop server chassis power supply unit, silver finish, compact rectangular form

NShi

NShi USP-500-24 500W 33.5A 24V Server Chassis

SKU CH-NZNJ-KPE32

A 500 W, 24 V desktop server chassis power supply delivering 33.5 A with up to 90 % efficiency, PFC, remote on/off and DC-OK signalling, operating from -30 to +65 °C in a naturally cooled metal case

  • Chassis styleDesktop
  • High power density of 6.2 W/in³ for compact server installations
  • Up to 90 % conversion efficiency reduces energy waste and heat
  • Operates reliably from -30 °C to +65 °C in harsh environments
  • Comprehensive protection against short circuit, overload, over-voltage and over-temperature
  • Metal enclosure with natural air cooling suits telecom and test equipment

Power Supply Specification

The NShi USP-500-24 is a new 500W AC-DC switching power supply delivering 33.5A at 24V. It features a desktop metal chassis with natural air cooling, power factor correction, remote switch, DC-OK signal and remote sensing functions. Conversion efficiency reaches up to 90% using ZVS technology to reduce losses, and the unit operates from -30 to +65 degrees Celsius with full protection circuits.

Ideal Use Cases

This unit suits engineers and integrators building test systems, measurement rigs or telecommunication equipment that require a single 24V rail with high power density up to 6.2W per cubic inch. It is not for buyers who need multiple output voltages or redundant hot-swap modules, nor for projects requiring fan-assisted or liquid cooling methods.

Deciding Specification

The single 24V output rated at 33.5A continuous current is the parameter that determines whether this supply matches the load. Exceeding this rated current for extended periods will reduce service life, so verify the total system draw before purchase.

How it compares

Measured against everything we stock in Rackmount Server Cases, at today’s prices. Recalculated every night.

Price $412.99
Pricier than about 77% of the 1,006 comparable items (median $222.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Size & build
Chassis styleDesktop

Questions about this item

How do I wire the remote switch and DC-OK signal on the USP-500-24, and which step is most often missed?

Connect the remote switch pins to enable or disable output and wire the DC-OK signal to your monitoring system; the step most often missed is leaving the remote sense lines floating instead of tying them to the load terminals for accurate 24V regulation.

What maintenance will the USP-500-24 need over its service life?

The metal case uses natural air cooling, so periodically clear dust from the vents and verify the fan-less airflow path remains unobstructed; no internal user-serviceable parts are described.

At what ambient temperature does the USP-500-24 hit its thermal limit first during sustained load?

The converter is rated for operation up to +65 °C; above this the over-temperature protection will shut the unit down before any other limit is reached.

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