Enhanced connectivity with a 2port or 4port RS422/485 serial PCI Express 2.0 card, delivering performance serial communication for home and industrial applications. Flexible serial communication options, supporting asynchronous full duplex communication over twisted pair or shielded cable for a variety of environments and setups. Easy installation and robust protection, featuring automatic IRQ address allocation and builtin DCDC isolated power to simplify setup and provide protection against ground interference. Industrystandard controller support, using the XR17V358 series multiple I/O PCIe controller and the 16C550 UART standard for costeffective connections to industrial machines. Use scenario: In a factory setting, connect PLCs, sensors, and instrumentation to a reliable RS422/485 network using a single PCIe card to streamline data collection and control. Use scenario: In a home workshop, integrate microcontroller projects or test fixtures that require stable RS422/485 communications for data logging and device control. Use scenario: In industrial panels or test rigs, deploy the card to enable robust serial interfaces in automated equipment without changing existing controller software.