Product Description
M4-ATX – Intelligent Automotive / Car DC-DC ATX PC Power Supply
M4-ATX is a high-power, intelligent automotive DC-DC ATX power supply designed for car PCs and battery-powered computing systems. It delivers stable ATX power while intelligently controlling the motherboard ON/OFF state based on ignition status, making it ideal for vehicles, boats, RVs, electric carts, and solar systems.
With a wide 6–30V DC input range, M4-ATX is built to survive harsh engine cranks (down to 6V) and transient over-voltage conditions commonly found in automotive environments. Simply connect it to your car, boat, RV, or battery system to power up your PC safely and reliably.
Powered by patent-pending HyperWatt™ technology, M4-ATX delivers exceptional power density in a compact, fanless design.
Key Features & Benefits
⚡ Intelligent Power & Ignition Control
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Programmable startup, shutdown, and sleep modes
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Controls motherboard ON/OFF switch via ignition sensing
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Configurable behaviour via optional serial cable
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Firmware can be customised for different power scenarios
🚗 Automotive-Grade Design
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Wide input voltage: 6–30V DC
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Withstands engine cranking and voltage transients
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Supports multiple battery chemistries
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Ideal for car, boat, RV, electric cart, and solar systems
🖥 Compatibility & Performance
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Fits 20-pin and 24-pin ATX motherboards
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Compatible with:
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Intel Core Duo & newer Intel CPUs
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AMD processors
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VIA platforms
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High-efficiency design with low heat generation
🔇 Silent & Compact
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100% fanless – no moving parts
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Silent operation for in-vehicle and embedded systems
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Small footprint with high power output
M4-ATX Software & Monitoring Tools
🖥 M4-ATX System Tray Monitor & Setup Application
The M4-ATX software install kit includes two Windows applications for monitoring and configuration.
1️⃣ M4ATXTray.exe – System Tray Monitor
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Monitors input/output voltages and temperature
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Requires USB connection to PC
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Displays real-time data via Windows system tray icon
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Customisable tray icon with multiple skins
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Hover over icon to view live readings
The second application M4_ATX.exe allows to setup various parameters of the power supply like ignition voltage limit or shutdown voltage limit.
2️⃣ M4_ATX.exe – Configuration Utility
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Configure ignition voltage limits
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Set shutdown voltage thresholds
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Adjust power behaviour and timing parameters
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Ideal for fine-tuning automotive and battery setups
OEM & Reseller Integration
M4-ATX firmware can be customised to support specific power behaviours.
OEM, system integrators, and resellers are welcome.
📧 Please contact us via email with your custom firmware or integration requirements.
Ideal Applications
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Car PC & automotive computing
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Fleet management systems
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Mobile kiosks
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Industrial PCs
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Solar-powered systems
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Marine & RV computing
