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Rectangular silver metal 1U ATX power supply unit with rear fan grille and power socket

KHACHIMO

KHACHIMO 1U 650W ATX Power Supply DPS-650UB G DPS-650UB C

SKU CH-N8V7-1RHMZ

A 1U 650 W ATX unit with 80 Plus Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • TypeATX
  • Faster wake-from-sleep with Modern Standby support
  • Lower electricity use and heat via 80 PLUS Gold efficiency
  • Near-silent operation as fan stops at low load
  • Clean, stable power delivery through LLC resonant topology
  • Supports efficient sleep states with DC-to-DC conversion

1U 650W ATX Power Supply

This 1U form-factor unit delivers 650W of continuous power for rack-mount servers and compact workstations. It targets system integrators who need high-density ATX power in a single rack unit. The Gold-rated design suits always-on infrastructure and noise-sensitive deployments.

80 PLUS Gold Efficiency Limits

The 80 PLUS Gold certification guarantees high efficiency at typical loads, reducing waste heat and lowering operating costs over time. Efficiency drops at very light or peak loads, so extreme low-power idle states or sustained maximum draw will not reach the rated level. The standard does not regulate transient response or hold-up time beyond its defined test points.

Modern Standby and Zero RPM Headroom

Modern Standby compatibility enables extremely fast wake-from-sleep transitions and improved low-load efficiency for supported platforms. Zero RPM mode keeps the fan off at low and medium loads for near-silent operation. Heavy sustained loads will activate cooling and exceed the fanless threshold, while systems without Modern Standby support cannot use the fast sleep states.

Highlights

  • Faster wake-from-sleep with Modern Standby support
  • Lower electricity use and heat via 80 PLUS Gold efficiency
  • Near-silent operation as fan stops at low load
  • Clean, stable power delivery through LLC resonant topology
  • Supports efficient sleep states with DC-to-DC conversion

Specifications

TypeATX

Questions about this item

Should I choose the DPS-650UB G or DPS-650UB C version for my build?

Both model codes refer to the same 650W ATX unit with identical 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby support; pick whichever SKU your supplier lists.

What does the 80 PLUS Gold rating mean once the PSU is installed in my PC?

It guarantees at least 80% efficiency at typical loads, so the supply draws less mains power, runs cooler and lets the fan stay off longer under light use.

What ATX standard does this 1U supply follow and what does that cap in practice?

It follows the ATX form factor and 80 PLUS Gold specification, capping usable output at 650W while maintaining high efficiency across the load range.

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