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Black rectangular ATX power supply unit with 650W rating

KHACHIMO

KHACHIMO 650W ATX Power Supply SD-700U SD-600U SD-500U

SKU CH-E0A2-BK1WA

An ATX power supply delivering 650 W with 80 PLUS Gold efficiency, Modern Standby support, a Zero RPM fan mode for silent low-load operation.

  • Product typeATX
  • Fast wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Silent operation at low loads via Zero RPM fan
  • Resonant LLC with DC-to-DC gives clean, stable power
  • 650 W ATX output for modern PC builds

650 W ATX Power Supply

This 650 W ATX power supply delivers Gold-rated efficiency for desktop builds that demand clean power and quiet operation. It suits system integrators and enthusiasts assembling modern PCs with standard ATX form-factor requirements.

80 PLUS Gold efficiency limits

At typical loads the unit meets 80 PLUS Gold efficiency targets, reducing waste heat and lowering overall power draw. The resonant LLC topology with DC-to-DC conversion keeps voltage regulation tight, but peak output cannot exceed the rated 650 W ceiling.

Modern Standby compatibility decides fit

Modern Standby support enables extremely fast wake-from-sleep times and better low-load efficiency for systems that use this sleep state. Builds without Modern Standby requirements will not benefit from this specific feature.

How it compares

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

Price $285.99
Pricier than about 76% 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

Should I choose the 500 W, 600 W or 650 W version?

The listing covers three model codes — SD-500U, SD-600U and SD-700U — but the headline rating is 650 W, so that is the capacity you will receive.

What does the 650 W rating mean once the unit is installed?

It can deliver up to 650 watts of continuous power to the components in your build while maintaining 80 PLUS Gold efficiency.

What interface does this supply use and what does it limit?

It follows the ATX form factor, so it fits standard ATX cases and connects to ATX motherboards and peripherals.

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