KHACHIMO 620W ATX Power Supply YM-6621B 80 PLUS Gold

Modern Standby ATX Power Supply

The KHACHIMO YM-6621B is a new 620W ATX power supply built with Resonant LLC topology and DC-to-DC conversion. It carries 80 PLUS Gold certification for high efficiency and lower heat output. Modern Standby compatibility ensures extremely fast wake-from-sleep times and improved low-load efficiency. The Zero RPM fan mode stops the fan entirely at low and medium loads for near-silent operation.

Builders prioritising quiet, efficient sleep states

This unit suits system builders who want clean, consistent power delivery with reduced coil whine and silent running during everyday tasks. The fast wake capability benefits users who rely on Modern Standby sleep states. Buyers who need higher wattage for demanding multi-GPU configurations or extreme overclocking headroom should look at higher-capacity units.

80 PLUS Gold certified 620W capacity

The single specification that decides fit is the 620W rated output combined with 80 PLUS Gold efficiency. This power level supports mainstream gaming PCs and workstations with single high-end graphics cards. Verify that your component peak draw stays within this limit before purchase.