KHACHIMO 280W ATX Power Supply 80 PLUS Gold Zero RPM Fan LLC DC-DC

280W ATX PSU for compact builds

The KHACHIMO 280W ATX power supply delivers Gold-rated efficiency and Modern Standby support in a form factor suited to 1U chassis and small-form-factor desktops. It targets system integrators and DIY builders who need reliable, low-noise power for thin clients, embedded appliances or office workstations. The unit replaces several legacy server PSUs including the POE 1U 7708N, 7908N, 7716N, 7916N and 7932N models.

Replaces older 1U units when silence matters

Upgrading from the KSA-300S2, DPS-280AB-4A, DPS-280AB-6C or DPS-280AB-M4 is worthwhile when the system spends long periods at idle and the builder wants the fan to stop completely. The resonant LLC topology with DC-to-DC conversion reduces coil whine and enables deeper sleep states, so the efficiency gain is most noticeable in always-on or frequently suspended workloads. Builders whose platforms demand higher peak wattage or additional PCIe connectors should look elsewhere.

Straightforward swap in compatible 1U housings

Installation is a direct mechanical and electrical replacement for the listed legacy models, using the same mounting points and ATX connector layout. The most common issue arises when the replacement chassis or backplane expects a different pin-out or physical keying on the main power connector; verifying the exact part number against the supplier title before ordering avoids a mismatch. No extra cables or adapters are included.