We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular ATX power supply unit with matte black metal casing and rear exhaust grille

KHACHIMO

KHACHIMO X3650 X3550M5 550W Power Supply

SKU CH-07A6-EJ5SP

550 W ATX unit with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • Product typeATX
  • Fast wake from sleep with Modern Standby support
  • Lower running costs thanks to 80 PLUS Gold efficiency
  • Near-silent operation via Zero RPM fan mode
  • Clean, stable power from LLC resonant topology with DC-to-DC conversion
  • Compatible with X3650 and X3550M5 server models

KHACHIMO 550W ATX Power Supply

This 550 watt ATX power supply is built for desktop systems that require reliable, efficient power delivery. It suits builders who value low noise and reduced energy waste in everyday computing workloads.

Upgrade from lower-efficiency units

Replacing an older non-certified or bronze-rated supply with this 80 PLUS Gold unit cuts power draw and heat output. The jump is worth it when you want Modern Standby support for faster wake times and quieter operation under light loads.

550 watt capacity for mainstream builds

The 550W rating comfortably handles typical mid-range components including a single discrete graphics card. It runs out of headroom in configurations with multiple high-power GPUs or heavily overclocked CPUs that demand sustained output above this level.

How it compares

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

Price $189.99
Pricier than about 61% of the 10,869 comparable items (median $142.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Product typeATX

Questions about this item

Will this ATX power supply fit the standard mounting holes in my case?

Yes, it uses the ATX form factor so it aligns with the standard four-screw mounting pattern used by most cases.

Which cables must be connected during installation to enable Modern Standby wake-up?

Connect the 24-pin ATX motherboard cable and the 4-pin or 8-pin CPU power cable; the firmware handles Modern Standby signalling through those rails.

If the fan stops spinning under light load, does that mean the unit needs service?

No, Zero RPM Fan Mode intentionally stops the fan at low and medium loads; it will restart automatically when temperature or load increases.

More in ATX Desktop Power Supplies

Similar items