National Instruments NI PCI-6602 DAQ Counter Timer Board 68-Pin PCI Card

National Instruments PCI 6602 Timer Board 184479B-01 - Tested (See Description)

National Instruments NI PCI-6602 Counter / Timer DIO Card, 8 channels

National Instruments PCI-6602 8-Channel Counter/Timer

National Instruments PCI-6023E NI Multifunction DAQ Card 185415B-01 USA

National Instruments NI PCI-6251 Multifunction DAQ Device Card 190998B-01

National Instruments PCI-6602 High-Speed & Timing Digital I/O Acquisition Card

NATIONAL INSTRUMENTS 184479J-01L PCI-6602 COUNTER/TIMER MODULE