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Green PCB adapter board with 24-pin ATX, CPU 4+4-pin, two SATA, graphics 2+6-pin and two DC5525 connectors, cables attached

myVolts

myVolts LD-A450WL 450W ATX Power Supply Adapter Board

SKU CH-V7T6-1C6AB MPN LD-A450WL

ATX breakout board delivers 450 W from a 12 V DC source with over-current and short-circuit protection for mini-ITX, HTPC and industrial builds

  • Product typeAT
  • Eliminates 24 motherboard wires with direct ATX plug
  • Delivers 450W from a single 12V input source
  • Supplies +12V at 30A plus +5V and +3.3V rails
  • Includes overcurrent and short-circuit protection on all outputs
  • Provides CPU, GPU, SATA and DC5525 connectors for compact builds

Compact ATX Adapter for 12 V Systems

The myVolts LD-A450WL is a 450 W ATX power-supply adapter board that plugs straight into a 24-pin motherboard connector. It accepts a single 12 V DC input and delivers +3.3 V, +5 V, +12 V and +5 VSB rails for small-form-factor builds. On-board over-current and short-circuit protection shut the outputs down when limits are exceeded.

Fits MINI-ITX, HTPC and embedded boxes.

Builders of MINI computers, HTPCs, POS terminals, ITX cases, web servers, advertising players, bank terminals, low-power systems or industrial control units will appreciate the cable-free layout. Systems that need more than 30 A on the 12 V rail, additional PCIe power connectors or redundant supplies should look at a full-size ATX unit instead.

Single 12 V DC input delivers 450 W through

The board draws 12 V through a DC5525 jack and regulates it at 250-350 kHz, providing up to 30 A on the 12 V rail, 10 A on 5 V and 3.3 V, and 2 A on 5 VSB. This single-input rating is the key figure that decides whether the adapter can power your chosen components.

How it compares

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

Price $54.99
Cheaper than about 89% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

How do I plug the 24-pin ATX connector into the board without bending pins?

Align the keyed 24-pin ATX plug straight onto the board header and press evenly until the latch clicks; the straight-plug design removes 24 loose wires but demands careful alignment to avoid bent contacts.

Which protection circuit is most likely to trip first and need a power-cycle reset?

Overcurrent protection on the +12 V rail at 30 A peak will shut off output before short-circuit protection engages; cycling the 12 V input restores operation.

What thermal limit caps continuous output in a sealed ITX case?

The board is rated to 55 °C ambient; sustained loads near 450 W in a confined space will hit that ceiling before any component rating is exceeded.

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