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Green rectangular circuit board with 24-pin ATX connector, four voltage output terminals, power switch and indicator LED

myVolts

myVolts XH-M229 24-pin ATX benchtop power adapter board

SKU CH-YGXB-MSCQQ

Breakout board converts a 24-pin ATX supply into four fused outputs at 3.3V, 5V, 12V and -12V with a power switch and indicator

  • TypeAT
  • Quick access to 3.3V, 5V, 12V and -12V for embedded projects
  • Standard 24-pin ATX connector with power indicator and on/off switch
  • Each output channel protected by a replaceable 20A glass fuse and ground binding posts
  • Compact board measures 128 × 48 × 30 mm for benchtop use
  • Powered directly from a standard ATX computer power supply

Benchtop ATX breakout board

The myVolts XH-M229 adapter plugs into a standard 24-pin ATX supply and exposes four voltage rails for embedded development. It delivers 3.3 V, 5 V, 12 V and -12 V through binding posts with individual 20 A glass fuses. The board measures 128 x 48 x 30 mm and weighs 65 g.

Build quality and daily connectivity

A power-indicator LED and an on-board switch let you confirm rail status and cut power without unplugging the ATX connector. Each output channel includes a replaceable fuse and a matching ground post for secure wiring. The compact PCB arrives in an anti-static bag ready for bench use.

Thermals noise and power draw

Passive operation means no fan noise and zero active cooling requirement. Heat dissipation depends entirely on the host ATX supply and the load placed on each fused rail. The board itself draws only the negligible current needed to drive the indicator LED.

Pluspunten

  • Quick access to 3.3V, 5V, 12V and -12V for embedded projects
  • Standard 24-pin ATX connector with power indicator and on/off switch
  • Each output channel protected by a replaceable 20A glass fuse and ground binding posts
  • Compact board measures 128 × 48 × 30 mm for benchtop use
  • Powered directly from a standard ATX computer power supply

Specificaties

TypeAT

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What voltages does the 24-pin ATX connector supply to the board?

The board breaks out 3.3V, 5V, 12V and -12V from the ATX connector into four separate output sets.

What are the board dimensions and mounting footprint?

The board measures 128 mm long by 48 mm wide by 30 mm high (5.04" x 1.89" x 1.18").

How do I power the board on after connecting an ATX supply?

Plug a standard ATX power supply into the 24-pin port, then use the onboard power switch to turn the outputs on or off.

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