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National Instruments NI cRIO-9425 DI 24V Sink 32-Ch Sinking Digital Input Module

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National Instruments NI 9426 with DSUB 32 Ch 24V Digital Input Module 197689B-01

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National Instruments NI 9403 Digital Input/Output Module, DSUB - USA

National Instruments NI-9425 NI9425 with DSUB C Series Digital Input Module