NI 9229 4-CH +/-60 V, 50 KS/S PER CHANNEL, 24-BIT, CH-TO-CH ISOLATED ANALOG INPUT MODULE
NI 9208, 24-BIT CURRENT INPUT MODULE WITH D-SUB, ±20MA FOR C SERIES CHASSIS
NI 9422 8-CH 60 V, 250 US, SINKING/SOURCING DIGITAL INPUT MODULE
NI 9476 32-CHANNEL 24 V, 500 US, SOURCING DIGITAL OUTPUT MODULE