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M3-ATX, 125w output, 6v to 24v wide input Intelligent Automotive DC-DC Car PC Power Supply


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Plug-In Smart car PC PSU

- 125 Watts (150watt peak) PSU
- 20pin ATX, 6-24V wide input range
- Programmable timing settings
- Intelligent shutdown controller
- ON/OFF motherboard control
- Survives vehicle engine cranks
- Battery deep discharge prevention
- High efficiency, 125 watts output
- "Anti-Thump" Amplifier remote control
- < 0.5mA standby current

- Solid Polymer capacitors, Japan
- VIA, Intel and AMD CPU support
- manufactured by mini-box.com
- ROHS compliant version

- US Pat. no 7,539,023

Download the M3-ATX utility
(needs Serial Cable Harness for M3-ATX)
Download the Wiring Diagram
Product Description
- U.S. Patent no. 7,539,023, other US and Intl patents pending.

Intelligent Automotive / Car DC-DC ATX PC Power Supply

M3-ATX is an intelligent, high power, vehicle (car / boat / electric cart) DC-DC ATX PC power supply designed for car pc or battery powered applications. Designed to provide power and to control the ON/OFF switch of a motherboard (car PC) based on ignition status, M3-ATX is a wide input (6 to 24V) vehicle / car / battery operated ATX power supply capable of surviving tough car engine cranks (down to 6V) as well as transient over-voltage situations. Just connect it to your car / boat / RV / solar battery and power up your PC!

M3-ATX is based on similar electrical similar design as M2-ATX but with dramatic size reductions (picoPSU plug-in style).

By using Patent Pending HyperWatt[TM] technologies, M3-ATX packs an impressive amount of power relative with its very small footprint. M3-ATX has several key advantages over traditional power supplies:
- Very small, can build ultra-compact PC enclosures and slim server enclosures.
- Programmable shutdown / sleep modes via optional serial cable.
- Fits any motherboard equipped with a 20 or 24pin ATX connector.
- 100% silent, fanless, no moving parts.
- Operates from 6-24V, multi-chemistry batteries supported.
- Highly efficient design, does not produce a lot of heat.
- Ideal for low power Intel Core Duo as well as all VIA or AMD processors.

Firmware on the M3-ATX can be changed to accommodate different behaviours. OEM / reseller integration is welcome. Please send en email to with your custom requirements.
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Download the M3-ATX utility

Download the Wiring Diagram of M3-ATX Type 1 Cable

Download the Wiring Diagram of M3-ATX Type 2 Cable(not available yet)
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- Hidden area for USB / WIFI / Storage
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