2 or 4port RS422/485 serial PCIe 2.0 card designed for performance serial communication in both home and industrial environments. Key benefits Flexible port options: available in 2port or 4port RS422/RS485 configurations to suit your expansion needs. Reliable controller and compatibility: built with the XR17V358 series multiI/O PCIe controller and industrystandard 16C550 UART for broad device compatibility and costeffective connections to industrial machines. Flexible cabling: supports asynchronous, fullduplex serial communication over twisted pair or shielded cable for reliable operation in varied environments. Easy integration: uses a standard PCI Express 2.0 interface for straightforward installation in desktops, workstations, and industrial PCs. Consolidated I/O: enables embedding multiple serial devices into a single card to simplify system design and save space. Durable, reliable design: constructed with quality components suitable for continuous operation in factory or workshop settings. Specifications and compatibility Port configuration: 2port or 4port RS422/RS485 serial interfaces. Controller: XR17V358 series multiI/O PCIe controller. UART compatibility: industrystandard 16C550 UART. Communication: asynchronous, fullduplex over twisted pair or shielded cable. Interface: PCI Express 2.0 card form factor. Size, material and performance notes Standard PCI Express 2.0 card suitable for installation in compatible desktop, workstation, or industrial PC chassis. Built with reliable components and a standard PCB for durable, longterm operation. Performance optimized for multiport serial expansion with stable, lowlatency communication. Practical use scenarios Industrial automation: connect PLCs, CNC controllers, or HMIs to a single PC to monitor and control production processes. Data logging and telemetry: gather data from multiple RS422/RS485 sensors and transmit to a central data server for analysis. IT and development environments: integrate several serial devices into development, testing, or diagnostic setups, bridging legacy equipment with modern systems. Notes The card is intended for engineers and IT professionals who need to integrate multiple serial devices into their systems efficiently. It supports standard RS422/RS485 signaling and leverages the XR17V358 controller with 16C550 UART compatibility to ensure broad compatibility and costeffective connections.