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Compact 300W DC-ATX module with 24-pin ATX cable and DC input lead

myVolts

myVolts 300W 12V DC-ATX Power Supply Module

SKU CH-YSMF-53P4N

A 300 W AT power module converts 12 V DC to standard ATX voltages for mini-ITX and 1U cases, with over-current and short-circuit protection and an included 24-pin cable

  • TypeAT
  • Fits mini-ITX and 1U cases with 154 x 35 x 15mm board
  • Industrial solid capacitors deliver stable 300W output at up to 55°C
  • Over-current and short-circuit protection keeps components safe
  • 24-pin ATX cable plus 20-pin adapter enables plug-and-play install
  • 85% efficiency from 12V DC input reduces heat in compact builds

300W 12V DC-ATX Module for Mini-ITX

This power supply module delivers 300W of output power from a 12V DC input ranging between 11.4V and 12.6V. It is designed for mini-ITX and 1U chassis where space is limited. The unit uses industrial solid capacitors for high temperature resistance and stable operation. A 24-pin ATX cable and a 24-pin to 20-pin adapter are included for direct motherboard connection.

Builders needing compact DC-powered systems

The module suits integrators assembling HTPCs, POS terminals, digital signage players, or thin servers that run from an external 12V adapter. It is not for builders who require an internal AC-DC power supply with a standard IEC inlet. Buyers without a separate 12V source capable of at least 25A input current should look elsewhere. Systems needing multiple PCIe power connectors are not supported.

Verify 12V adapter capacity and case clearance

Confirm your external power adapter supplies 12V DC within the 11.4V to 12.6V window and can deliver up to 25A continuously. Check that the module board dimensions of 154mm by 35mm by 15mm fit your chassis layout alongside the motherboard. Ensure the 24-pin ATX connector matches your board layout, using the included 20-pin adapter if required. The operating temperature range spans 0°C to 55°C.

Points forts

  • Fits mini-ITX and 1U cases with 154 x 35 x 15mm board
  • Industrial solid capacitors deliver stable 300W output at up to 55°C
  • Over-current and short-circuit protection keeps components safe
  • 24-pin ATX cable plus 20-pin adapter enables plug-and-play install
  • 85% efficiency from 12V DC input reduces heat in compact builds

Caractéristiques

TypeAT

Questions sur cet article

What external power adapter do I need to run this 300W 12V DC-ATX module?

You need a 12V DC adapter that can supply up to 25A within the 11.4V to 12.6V input range.

Will this module fit and power a standard ATX motherboard in my older chassis?

The board measures 154 x 35mm and includes a 24-pin to 20-pin cable, so it connects to both 24-pin and 20-pin ATX headers.

How can I verify the unit is delivering stable power after installation?

The module provides over-current and short-circuit protection; stable operation under load without shutdown indicates it is working correctly.

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