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Compact fanless ATX DC-DC power supply unit, matte black finish

Mini-Box

Mini-Box M4-ATX-HV 250W 6-34V DC-DC ATX power supply

SKU CH-YVFY-WMGDT

A fanless 250 W DC-DC ATX supply that runs from 6–34 V vehicle batteries and fits 20 or 24-pin motherboards

  • TypeATX
  • Delivers 250W continuous power from a compact DC-DC design
  • Wide 6-34V input survives engine cranks down to 6V
  • Fanless operation runs 100% silent with no moving parts
  • Programmable shutdown and sleep modes via optional serial cable
  • Fits any motherboard with 20 or 24-pin ATX connector

Vehicle DC-DC ATX power supply

The Mini-Box M4-ATX-HV is a 250W intelligent DC-DC ATX power supply built for vehicle and battery-powered PCs. It accepts a wide 6-34V input range, surviving engine cranks down to 6V and transient over-voltage events. The unit connects directly to car, boat, RV or solar batteries to power a desktop motherboard. It fits any board equipped with a 20 or 24-pin ATX connector and supports Intel Core Duo, VIA and AMD processors.

Fanless silent operation

The supply is 100% silent with no moving parts, using a fanless design that produces minimal heat. High efficiency reduces thermal load inside compact enclosures. No active cooling is required, making it suitable for sealed or vibration-prone installations. Firmware can be updated to adjust behaviour for different power-management needs.

Compact battery integration

The small footprint frees space in tight vehicle or mobile builds while delivering full ATX power. Programmable shutdown and sleep modes are available via an optional serial cable tied to ignition status. Multi-chemistry battery support allows flexible energy-source choices. The wide input voltage handles unstable supply lines without external regulation.

Points forts

  • Delivers 250W continuous power from a compact DC-DC design
  • Wide 6-34V input survives engine cranks down to 6V
  • Fanless operation runs 100% silent with no moving parts
  • Programmable shutdown and sleep modes via optional serial cable
  • Fits any motherboard with 20 or 24-pin ATX connector

Caractéristiques

TypeATX

Questions sur cet article

How do I wire the 6-34 V input to my vehicle battery and avoid the common mistake of reversing polarity?

Connect the positive lead to the battery positive terminal and the negative lead to chassis ground or battery negative; the unit accepts 6 to 34 V DC and survives engine crank dips down to 6 V, but reversed polarity will damage it.

What maintenance or replacement will the M4-ATX-HV need over time?

The supply is 100 % silent and fanless with no moving parts, so there are no fans or filters to clean or replace; only the optional serial cable or firmware might be updated for new shutdown profiles.

What limit appears first when the M4-ATX-HV runs continuously at high load in a hot vehicle?

The 250 W maximum output is the hard ceiling; sustained loads near that level will hit the power limit before any thermal throttle because the highly efficient design produces little heat.

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