XR17V358 series Multi I/O PCIe controller with industry standard 16C550 UART compatibility for costeffective connections to industrial machines. Designed for engineers and IT professionals needing to integrate multiple serial devices into a single system. Supports asynchronous fullduplex communication over twisted pair or shielded cable for flexible installation in various environments. Available as 2port or 4port RS422/485 Serial PCI Express 2.0 Card, delivering performance serial communication for home and industrial applications. PCI Express 2.0 interface and 2/4 RS422/485 ports provide scalable expansion while maintaining compatibility with standard devices. PCIe form factor fits standard PCIe slots for reliable operation in factory and workshop settings. Use scenarios: Factory floor: connect PLCs, sensors, and control devices for data collection and automation. IT/Engineering workstation: integrate multiple serial peripherals such as barcode scanners, meters, and instruments into a single host system. Home lab or workshop: run RS422/485 instruments and test setups for development and testing.