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ESA Industrial 486 Baby AT Motherboard 8x ISA & 1 Shared PCI Slot


ESA designed this 486 industrial motherboard as a direct replacement for legacy x86 applications. This legacy 486 format has updated features so you can explore additional possibilities for your project.

  • 8x ISA & 1x shared PCI slot
  • Hard-wired speed adjustable CPU @ 33, 66, or 100MHz
  • Hard-wired 8, 32, or 128MB SD100 SRAM
  • On-board VGA
  • Bootable CF card slot
  • Accepts ATX or AT power input
Customize This Product

Legacy ISA & PCI with a High Tech Twist

With 8x ISA and 1x shared PCI slot you can forget having to use an SBC with a passive backplane.  It’s all here in a baby AT motherboard format powered by a ZFMicro x86 SoC.  No need for a heatsink and fan with this hard-wired, ultra-low power, speed adjustable CPU.  Your choice of ATX or AT power input and Large DIN or PS/2 keyboard.  On-board VGA, via header, saves an ISA slot. Hardwired 8, 32, or 128MB PC-100 SDRAM.  Bootable CF card slot, mini PCI slot, watchdog timer, GPIO, floppy drive header, and dual IDE interfaces.  On-board speaker and reset button. DR-DOS 7.0 license included.



Stellar Industrial 486 Performance

The ESA-486AVR ZFx86 System-on-Chip includes both CPU and chipset.  The SoC is ultra-low power; less than 1.0W @ 100MHz.   CPU speed is user selectable by jumper for: 33MHz, 66MHz, or 100MHz to match your application requirements.  Hard-wired VGA in an on-board SM712 Silicon Motion graphic controller with 4MB of internal memory. The on-board bootable CF card slot uses no extra memory addresses.  All this in a manageable 10.2″ x 8.6″ standard baby AT footprint.

Classic I/O

ESA-486AVR industrial I/O includes 8x ISA & 1shared PCI slot, 1x mini-PCI slot, AT and ATX power connectors, 2x serial and 1 parallel port native to the chipset.  Additional I/O includes 1x FDD, 2x IDE, speaker, reset button, power and HDD LEDs, watchdog timer, GPIO, AT KB connector, PS/2 KB and mouse headers, and a bootable CF card slot.

Column 1Column 2
Processor486 ZFx86 System-on-Chip, ultra-low power, less than 1.0W @100MHz, user jumper selectable CPU speed:  33MHz, 66MHz, 100MHz, no heatsink/fan required
GraphicsSilicon Motion graphic controller on board; SM712 with internal 4MB memory
Memory8, 32, or 128MB PC-100 SDRAM on board
Watchdog TimerStandard
I/O Internal
Parallel1x LPT header
Keyboard1x PS/2 keyboard header
Mouse1x PS/2 mouse header
I/O External
Video1x VGA connector on backwindow slot bracket
Serial2x RS-232, backwindow slot bracket(s)
KeyboardAT style keyboard connector
Expansion Internal
ISA8x ISA slots
PCI1x shared PCI slot
Mini PCI1x Full-size Mini PCI card slot
GPIOStandard format
IDE HDD2x IDE headers
CF Card SlotInternal bootable (Shared IDE)
Floppy Drive1x floppy drive header
Power InputHeaders for ATX PS/2 or AT power supply
SwitchesPower ON/OFF, reset  
IndicatorsOn-board mini LEDs for Power, HDD Activity.
Dimensions10.2" (H) x 8.7" (W)
Weight1.5 Lbs
Operating Temperature-20°C ~ 60°C
Storage Temperature-30°C ~ 70°C