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Rectangular silver ATX power supply unit with fan grille and cable bundle

KHACHIMO

KHACHIMO GPS-350CB A 300W ATX 80 PLUS Gold power supply

SKU CH-V5C3-NVVNY

A 300W ATX power supply with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and LLC resonant DC-to-DC topology for quiet, stable power

  • Product typeATX
  • Modern Standby support gives extremely fast wake-from-sleep times
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • 300 W rated output supplies reliable power for ATX systems

300W ATX Gold for Modern Standby

This KHACHIMO GPS-350CB A is a 300W ATX power supply built for systems that use Modern Standby. The 80 PLUS Gold certification confirms high efficiency across typical loads. It suits compact or low-power builds where fast sleep and wake behaviour matters.

Sustained output with silent running

Resonant LLC topology and DC-to-DC conversion keep voltage stable during continuous load rather than brief peaks. The Zero RPM fan mode stops the fan completely at low and medium loads, removing acoustic noise. Gold-level efficiency reduces waste heat, helping the unit stay cooler when the system runs for long periods.

Build quality for quiet daily use

The same resonant LLC and DC-to-DC design cuts coil whine, so background electrical noise stays low in quiet rooms. Modern Standby compatibility means the supply meets strict low-power timing requirements for instant wake. Connectors follow the ATX standard, allowing straightforward installation in compatible chassis.

How it compares

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

Price $198.99
Pricier than about 63% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

How loud is the fan on the GPS-350CB A 300W unit when the system runs all day?

The Zero RPM Fan Mode stops the fan completely at low and medium loads, so the 300W supply runs near-silently during typical all-day use.

What motherboard connectors must my board provide for this ATX power supply to work?

Your motherboard needs a standard 24-pin ATX connector and a 4-pin or 8-pin CPU power connector to match the ATX design of the GPS-350CB A.

Will the Resonant LLC topology with DC-to-DC conversion on this 80 PLUS Gold unit cause issues with older components I keep?

The topology delivers clean, consistent power and reduces coil whine, so older hardware runs stably alongside the efficient 300W design.

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