StarTech PEX4S553 4 Port Native PCI Express RS232 Serial Adapter Card

Manufacturer's part no.: PEX4S553. Interface: Serial. External ports: DB-9 (9 pin, D-Sub) male. Ports: DB-9 (9 pin, D-Sub) male, 4. Colour: Green. Card type: Standard profile (LP bracket included).

eBay