National Instruments NI 9401 8-Channel TTL High Speed Digital Input/Output

* National Instruments NI 9472 8-Channel Sourcing Digital Output 24V

National Instruments NI 9474 8-Channel 24V High Speed Sourcing Digital Output

National Instruments NI 9422 8-Channel 24V Sinking/Sourcing Digital Input

National Instruments NI 9421 8-Channel 24V Sinking Digital Input

National Instruments NI 9476 32-Channel Sourcing Digital Output Module DSUB

National Instruments NI 9421 8-Channel 24V Sinking Digital Input DSUB

National Instruments NI 9403 32-Channel TTL Digital Input-Output C-Series Module