New National Instruments NI PXI-8432/2 PXI8432/2 PXI Serial Interface.

National Instruments NI PXI-8430/16 RS232 Serial Interface Module

National Instruments Pxi-8432 Pxi Serial Interface Module new in box

National Instruments NI PXI-8431/8 RS485/RS422 8-Port Serial Interface Board

For National Instruments NI PXI-8331 Interface Card Module Acquisition Card

*USA* National Instruments NI PXI-8430/8 RS232 Serial Interface Module

National Instruments NI PXI-8431/8 RS485/RS422 8-Port Serial Interface Board&dmm

National Instruments PXI-8422/4 NI Serial Interface Card, Isolated 4-Port RS232