PCIe Serial Controller Card — 4x DB-9 RS-232 Ports + 1 TTL Port (Includes Fan-Out Cable)

Add four DB-9 RS-232 serial interfaces and one TTL-level port to a PCIe-equipped system. This PCIe expansion card provides 4x DB-9 RS-232 connectors plus a dedicated TTL port and ships with a fan-out cable for straightforward wiring and installation. Ideal for connecting legacy serial devices alongside TTL peripherals, the card installs into a standard PCIe slot to expand a desktop or industrial PC's serial I/O capabilities.