StarTech.com USB Motherboard Header IDC Male to D-sub, 9 Pin Female Interface Adapter [ICUSB232INT2]; 280-4614
The StarTech.com USB to Serial Adapter lets you add 2 RS232 ports to any desktop system that is equipped with an available USB motherboard header. Unlike standard USB to serial cables, this cable is designed for use inside the PC case, affording an entirely internal solution with no mess or extra adapters needed.
RoHS compliant
Supports COM port retention
USB 2.0 full speed compatible
FIFO receive and transmit buffers