National Instruments NI PXI-8432/4 Card

Fully tested & working used National Instruments PXI-8432/4 high-performance isolated RS-232 serial interface module (part number 779538-01). It provides 4 independent isolated RS-232 ports with port-to-port and port-to-PC electrical isolation, protecting your PXI system from voltage spikes and ground loops in noisy industrial environments. Supports baud rates up to 1 Mbps and comes with four 10-position modular RJ-50 connectors. Compatible with PXI hybrid slots, works as standard COM ports, and supports NI-VISA/NI-Serial drivers for seamless integration with LabVIEW and other test applications. Fully calibrated, inspected, and ready for deployment.