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Compact rectangular fanless ATX power module with 24-pin connector and cables

myVolts

myVolts 19 V 200 W fanless ATX power supply

SKU CH-AVP3-NG545

Fanless 200 W ATX module converts 19 V DC input to standard PC rails with over-voltage and short-circuit protection

  • TypeAT
  • Fanless design delivers completely silent operation
  • Accepts 16 V to 24 V DC input for flexible power sources
  • 200 W output supports standard ATX components
  • Over-voltage and short-circuit protections safeguard hardware
  • Compact 155 mm × 35 mm × 20 mm module fits tight spaces

Fanless 19 V DC-to-ATX module

This 200 W power module converts a 16 V to 24 V DC source into standard ATX voltages for internal computer components. It suits builders assembling silent industrial PCs or compact systems where a conventional AC supply is impractical.

Installing the 155 mm board

The unit measures approximately 155 by 35 by 20 mm and includes a 24-pin ATX connector, 12 V AUX lead, Molex, SATA, and floppy power cables. Ensure the 19 V DC source can deliver 12 A and verify polarity before powering the board to avoid triggering protection circuits.

Steady output under continuous load

Efficiency is rated at 85 percent or higher across the 0 °C to 40 °C operating range. Over-voltage protection shuts down rails at 1.5 times nominal voltage, while short-circuit protection closes the output instantly, maintaining stable rails during sustained operation.

Points forts

  • Fanless design delivers completely silent operation
  • Accepts 16 V to 24 V DC input for flexible power sources
  • 200 W output supports standard ATX components
  • Over-voltage and short-circuit protections safeguard hardware
  • Compact 155 mm × 35 mm × 20 mm module fits tight spaces

Caractéristiques

TypeAT

Questions sur cet article

How can I confirm the module is delivering stable rails after wiring it up?

Measure the 3.3 V rail between 3.14 V and 3.47 V, the 5 V and 5 VSB rails between 4.75 V and 5.25 V, and the 12 V rail between 11.40 V and 12.6 V; ripple should stay at or below 50 mV on 3.3 V and 5 V and 120 mV on 12 V.

Which cables and connectors ship with the unit, and what must I source myself?

The box includes the power module, a 24-pin ATX to 12 V AUX cable, a 4-pin Molex lead, a SATA power lead and a 4-pin floppy drive connector; you must supply a 16–24 V DC source capable of 12 A at 19 V and any additional ATX extensions your build requires.

The spec sheet lists several output rails — which ones matter for choosing the right capacity?

The module provides +3.3 V up to 10 A peak, +5 V up to 10 A peak, +12 V up to 8 A peak, 5 VSB up to 2.5 A peak and -12 V up to 0.15 A peak; match your component draw to those limits rather than the 200 W label alone.

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