The National Instruments PCI-232/16 is a high-performance asynchronous serial interface designed for PCI applications, featuring 16 communication ports. This interface excels in connecting to various instruments via serial ports and supports a maximum data transfer rate of 115.2 kb/s. The PCI-232/16 is equipped with a SCSI 100-pin female connector, which interfaces with a breakout box, converting the onboard connector into sixteen DB-9 connectors for versatile connectivity. As a plug-and-play device, the PCI-232/16 facilitates automatic configuration, allowing seamless integration with existing applications or those developed using NI-VISA, such as Visual C++, Visual Basic, Excel, and NI LabVIEW. Enhanced performance is ensured by the dedicated serial driver that provides easy configuration and comprehensive access to advanced features, including support for RS485 interfaces. The interface operates at 250 mA from a +5 VDC PCI channel and offers ESD protection up to 115.2 kV for reliable data integrity. While the PCI-232/16 has been designated obsolete by National Instruments, it remains available for purchase and repair through Apex Waves. This module is compatible with various Windows-based systems and supports LabVIEW, Measurement Studio, and LabWindows/CVI. A user manual and maintenance documentation are accessible for download, and details regarding pricing can be obtained by contacting a sales representative.