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KHACHIMO ATX power supply unit in metal casing with cooling fan and cable bundle

KHACHIMO

KHACHIMO 28V 2.1A 75W ATX power supply RACD60-2100/OF

SKU CH-VQ64-4X5JJ

An ATX power supply delivering 75 W at 28 V with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support

  • TypeATX
  • Fast wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops at low load for silent running
  • LLC resonant topology with DC-to-DC for stable voltage
  • 28 V 2.1 A output delivers 75 W ATX power

28V 75W ATX power supply

This 28-volt ATX unit delivers 75 watts at 2.1 amps and carries 80 PLUS Gold certification for high efficiency. It targets system builders who need a compact, low-output supply for modern standby PCs or embedded applications. The resonant LLC topology with DC-to-DC conversion provides clean power and supports energy-efficient sleep states.

Installation notes and common issues

The standard ATX form factor fits most chassis and uses familiar connectors, so mounting and wiring are straightforward. Builders sometimes find the 75-watt limit insufficient when adding discrete graphics cards or multiple drives, causing instability under load. Zero RPM fan mode activates automatically at low and medium loads, requiring no software setup.

ATX output limits for low-power builds

The 28V rail provides up to 2.1 amps, which restricts the total component budget to very efficient CPUs and minimal peripherals. Modern standby compatibility allows fast wake times, but the supply cannot sustain high continuous currents needed for gaming GPUs or workstation workloads. Efficiency peaks near typical idle loads, reducing heat and fan noise in always-on scenarios.

Highlights

  • Fast wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops at low load for silent running
  • LLC resonant topology with DC-to-DC for stable voltage
  • 28 V 2.1 A output delivers 75 W ATX power

Specifications

TypeATX

Questions about this item

How can I confirm the RACD60-2100/OF is delivering stable 28 V output after installation?

Use a multimeter on the 28 V rail while the system is under load; a reading within specification confirms the unit is operating as intended.

Which cables and connectors are included with the RACD60-2100/OF, and what must I source separately?

The power supply ships with its fixed ATX cable set; any specialised adapters or extension cables for non-standard components must be purchased separately.

The model code shows 2100 — does that indicate a 2.1 A or 28 V variant, and which should I choose?

The designation reflects a single 28 V 2.1 A 75 W configuration, so there is no alternative capacity to select.

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