The Tripp Lite Keyspan USA-19HS is a USB to serial (RS-232) adapter for Mac and PC computers. It is meant for connecting legacy serial/RS-232 devices with nine-pin DE-9 connectors to current computers having only USB ports.
Tripp Lite USA-19HS Features
Works with Windows and Mac OS (including v10.7 Lion)
Connects RS-232/DB9 (male) to USB Type A (male)
No external power source required
Compliant with the Federal Trade Agreements Act (TAA) for GSA Schedule purchases