Adapter 4xDB9/m (RS232) USB-B/f

4 x DB9 male - USB Type-B female DB9 male with mounting screws Data transfer rate up to 921.6 Kb/s LED display Operating systems: Windows 2000/XP/Server-2003/Vista/Vista-64/ 7/7-64 Chipset: ASIX Includes: CD with drivers, USB cable (Type-A male - Type-B male, 1 m (for the PC)