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Small silver TFX power supply unit with rear fan grille and cable bundle

KHACHIMO

KHACHIMO TFX 350W Power Supply SS-350TGW

SKU CH-B7JT-HC54T

TFX form-factor 350 W power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support

  • Product typeATX
  • Modern Standby support enables rapid wake-from-sleep
  • 80 PLUS Gold certification delivers high efficiency for lower power draw and cooler operation
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent running
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • TFX form factor 350W output fits compact builds while powering essential components

TFX 350W form factor

This KHACHIMO power supply delivers 350 W in a TFX chassis suited to slim desktops and small-form-factor builds. It targets system integrators and upgraders who need a compact, gold-rated unit that fits proprietary cases without cable clutter. The ATX electrical specification ensures standard motherboard and peripheral connectors. Buyers who need higher wattage for discrete graphics or multi-drive arrays should look elsewhere.

Modern Standby and silent operation

Modern Standby compatibility allows extremely fast wake-from-sleep transitions and improved low-load efficiency for always-connected PCs. Zero RPM fan mode stops the cooling fan completely at low and medium loads, removing acoustic noise during office work or media playback. Resonant LLC topology with DC-to-DC conversion supplies clean power to modern sleep states and reduces coil whine. Systems that cannot use TFX dimensions or require modular cabling are not supported.

80 PLUS Gold sustained efficiency

The 80 PLUS Gold rating certifies high efficiency across typical workloads, lowering sustained power draw, heat output and fan speed during long sessions. LLC resonant conversion maintains tight voltage regulation under continuous load, protecting components from ripple. Fan-off operation persists until thermal thresholds rise, so extended idle periods stay silent. Builds that demand sustained output above 350 W or need redundant power are outside this unit's design envelope.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $383.99
Pricier than about 84% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Does the 350W rating hold up during continuous full-load operation?

The unit is rated for 350W continuous output, so it will sustain that load as long as cooling remains adequate.

How much noise and heat should I expect when the PSU runs all day?

80 PLUS Gold efficiency keeps waste heat low, and the Zero RPM fan mode stops the fan entirely at low and medium loads for near-silent operation.

What cables or connectors must my build already have for this PSU to work?

It uses standard ATX power connectors, so your motherboard and components need matching 24-pin, CPU and peripheral plugs.

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