PCIe to 4 Port RS232 Serial Expansion Card - 9-Pin DB9 COM Port Adapter for Industrial PCs, 4X RS232 Ports Converter with Plug and Play, Support Windows/Linux

"High-Speed & Industrial-Grade Performance", Equipped with AX99100 high-performance chip for ultra-stable operation, low power consumption, and enhanced compatibility. Each of the 4 RS232 ports delivers speeds up to 1MB/s, ideal for industrial automation, PLCs, and high-demand control systems.
"Universal PCIe Slot Compatibility", Supports PCIe X1/X4/X8/X16 slots for flexible installation across desktops and industrial PCs. Gold-plated PCIe X1 connector resists oxidation, ensuring reliable signal transmission and extended durability.
"Plug-and-Play Multi-OS Support", Seamlessly compatible with DOS, Windows XP/Vista/7/8, and Linux systems (driver required). Effortless installation for legacy and modern devices like printers, POS terminals, and industrial equipment.
"Robust 1-to-4 Serial Port Expansion", Includes a 4-port RS232 splitter cable (DB9 male to female), enabling simultaneous connections to multiple serial devices. Backward-compatible with classic 9-pin COM port peripherals.
"Industrial Reliability & Versatility", Built for 24/7 operation in harsh environments. Perfect for CNC machines, barcode scanners, medical devices, and factory automation systems requiring stable multi-serial communication.