ATEN USB to PDA/Serial (DB9) Adapter w/ PC & Mac Drivers - Walmart.com
USB to IEEE1284 Printer Adapter (1.8m) - UC1284B, ATEN Converters | ATEN Corporate Headquarters
Amazon.com: ATEN USB to RS422 RS485 2 Port Plug-and-Play Adapter Converter UC485, up to 921.6 Kbps, Supports Windows Vista / 7 and Above, Mac and Linux, Terminal/Echo Mode by Mode, UK, 1
ATEN USB to PDA/Serial (DB9) Adapter w/ PC & Mac Drivers - Walmart.com
ATEN UC232A USB TO SERIAL ADAPTER CELL PH PDA Converte 9pin RS232 Genuine | eBay