Working with an industrial PC, POS system, or embedded board that has a spare Mini PCI Express slot but needs old-school serial ports? This card adds four high-speed RS232 ports. It's a native PCIe design (not a bridge chip), which means lower CPU usage and better reliability.
Each port uses a 16650 UART with 256-byte FIFO buffers, supporting data rates up to 921.6 Kbps. Perfect for connecting legacy equipment like scales, scanners, CNC controllers, PLCs, or serial consoles.
The card itself is Mini PCIe (the kind often used for Wi-Fi in laptops). It comes with four 30cm cables that have an IDC connector for the card and a standard DB9 male connector on the other end. You'll need a bracket or way to route the cables out of your chassis.
Installation: slot the card into the Mini PCIe slot, secure it, and connect the cables. Drivers are usually standard and included or available from the chipset manufacturer. A must-have for techs and engineers dealing with serial devices in modern compact systems.
