This expanded I/O Motherboard provides 15 card slots as compared to the 13 provided by the original IOMB. The 40-pin header, included with the IOMB, is deleted from the IOMBX in favor of adding the additional card slots. Thus, the IOMBX is the preferred motherboard for all USIC/SUSIC applications while the IOMB is still required for UBEC/IBEC users.
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Note: The quoted prices for all circuit boards provided by JLC Enterprises are for the fabricated boards only, that is, without any electronic parts. All circuit boards come unassembled and less components. All holes are drilled and all circuit traces are tin plated for easy soldering. Where double-sided boards are provided, all feed through holes are plated-through. The SMINI, SUSIC, RS485, DIN32, DOUT32 and PGCC boards have solder masking on both sides, silk screen legend on component side and are factory tested against shorts and open circuits.