^^ National Instruments USB-232/4 USB to RS-232 Adapter (JIF34)

National Instruments NI GPIB-USB-B Interface Adapter

National Instruments PCMCIA-232/2 Serial Interface Card w/ Cables, 2-Port RS232

National Instruments FieldPoint FP-1000 RS-232/RS-485 Network Interface 184120D

National Instruments USB 232/2 187660E-01 Rev 1.2

National Instruments USB-232/4, USB to RS-232

National Instruments USB-232/4 Serial Interface Device 187660G-11L

National Instruments NI 9870 4 port RS232 Serial Module 198850A-01L