National Instruments NI 9435 C Series Digital Input Module, Sinking / Sourcing

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

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

National Instruments NI 9435 cDAQ Digital Input Module, Sinking / Sourcing

NEW IN BOX National Instruments NI 9423 8-Ch Sinking Input C Series

National Instruments NI cRIO-9423 8-Ch High Speed Sinking Digital Input Module

National Instruments NI 9421 8-Ch,Digital Input, Sinking Module Dsub

National Instruments NI-9425 32-Ch Sinking Digital Input Module - Mint Tested