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PCI/104-Express 88 Watt Embedded Power Supply

ATX104HR-Express Synchronous Power Supply
Rugged IDAN configurations available

Key Features

  • PC/104 form factor
  • PCI/104-Express stackable bus structure
    • PCIe universal expansion bus (Type 1 or Type 2)
    • PCI pass-through expansion bus
  • PCIe x1 interface
  • High Power Capacity
    • 88W maximum output power
    • Operational from -40°C to +85°C
    • All supplies are Synchronized to reduce noise and system stress
    • Efficiency as high as 90%
  • Wide Input Voltage Range
    • 8-32 Vdc Unregulated DC input (36V absolute maximum)
    • Low input capacitance
    • Low input current ripple
    • Reverse Polarity Protection to 40 Volts
    • Input Voltage Transient Protection
  • Outputs
    • +5 Vdc Standby at 1.0 A
    • +5 Vdc at 10.0 A
    • +3.3 Vdc at 10.0 A
    • +12 Vdc at 2.0 A
    • -12 Vdc at 500 mA
  • Status LEDs
    • Placed conveniently next to the PCI-Express Bus for easy viewing
  • Remote ON/OFF operation available


The ATX104HR-Express is an 88 Watt high power DC/DC converter in a PCI/104-Express format. The supply provides +5V, +3.3V, +12V and -12V to the PCI/104-Express bus and to the PC/104-Plus bus. Additionally, +5V, +3.3V, +12V, and -12V are provided at auxiliary connectors on the supply. The ATX104HR-Express provides the additional ATX signals PS_ON#, PWRGOOD and +5VSB on the PCI bus using the reserved pins and PCI-Express dedicated pins. Contact RTD Tech Support about configuring your RTD Single Board Computer for use with this feature.

The design uses a +5V dual phase supply cascaded to a +12V and a -12V circuit. The +5V is designed for 50 Watts, the +12V is designed for 24 Watts, and the -12V is designed for 6 Watts.

The ATX104HR-Express was designed to work without a heat sink and is easily integrated into IDAN systems using conduction cooling.

Physical Attributes

  • Dimensions
    • Length (L): 3.775 inches (95.89 mm)
    • Width (W): 3.550 inches (90.17 mm)
    • Stand-off Height: 0.600 inches (15.24 mm)
  • Weight: Approximately 0.16 lbs. (0.07 Kg)
  • Standard Operating Temperature, 90% humidity non-condensing: -40 to +85°C
  • Storage Temperature: -55 to +125°C
  • MTBF: 2,592,399 hours

Recommended Accessories

Documentation and Downloads

Ordering Information

Part Number Description Value

  88 Watt Embedded PCI/104-Express Power Supply with ATX control



RTD Embedded Technologies, Inc.
Designed and Made in the USA
sales@rtd.com   |   +1-814-234-8087