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Green PCB adapter board with 24-pin ATX connector and multiple power cables

myVolts

myVolts LD-A250WL 250W AT power supply over-current protection

SKU CH-BDEJ-JSVRX MPN LD-A250WL

AT power adapter board delivers 250 W through direct ATX, CPU, SATA and IDE connectors with over-current and short-circuit protection

  • TypeAT
  • Direct ATX plug removes 24 cables for compact builds
  • 250 W output with +12 V at 16 A for stable power delivery
  • Over-current protection shuts down output at peak current
  • circuit protection cuts power instantly when output is shorted
  • SATA, CPU 4+4-pin and IDE connectors included for drive support

Compact AT adapter for small ATX boards

This myVolts LD-A250WL unit is a 250W AT power adapter board that plugs straight into a 24-pin ATX socket. It removes 24 loose wires to save space inside compact chassis builds. The board accepts a 12V DC input and delivers regulated rails for legacy and modern components. Builders working with small ATX motherboards will find the direct-mount format convenient.

Single 12V DC input with defined rail limits

The adapter runs from a 12V source through a DC5525 jack and uses an IC oscillator at 250-350 kHz with a 0.8V reference. Maximum loads are +12V/16A, +5V/6A, +3.3V/6A, +5VSB/2A and -12V/0.05A. Over-current and short-circuit protections shut the output down when limits are reached. These figures determine whether the board can support your specific hardware.

Direct ATX mounting with short fixed cables

Installation consists of aligning the 24-pin ATX header and the CPU 4+4-pin connector, then routing the SATA, IDE and DC leads. Cable lengths are fixed at 320mm for DC, 210mm for CPU, 200mm for IDE and 150mm for SATA. The short reach suits small boards but may not stretch to distant drive bays in larger cases. Buyers needing longer runs or modular cables should look elsewhere.

Highlights

  • Direct ATX plug removes 24 cables for compact builds
  • 250 W output with +12 V at 16 A for stable power delivery
  • Over-current protection shuts down output at peak current
  • circuit protection cuts power instantly when output is shorted
  • SATA, CPU 4+4-pin and IDE connectors included for drive support

Specifications

TypeAT

Questions about this item

What does the 250 W rating actually deliver to the motherboard?

The board provides +12 V at 16 A, +5 V at 6 A, +3.3 V at 6 A, +5 VSB at 2 A and -12 V at 0.05 A, totalling 250 W across those rails.

What input does the DC5525 connector expect?

The DC5525 jack accepts a 12 V external source; the on-board oscillator then runs at 250-350 kHz to generate the ATX rails.

How much clearance do the fixed cables need inside the case?

The ATX24Pin plug mounts directly to the board, while the CPU cable reaches 210 mm, the IDE cable 200 mm and the SATA cable 150 mm from the adapter.

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