Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232 / DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) : Electronics
Buy 1ft USB to Serial DB9 RS232 Cable Adapter with Screw
USB 2.0 To Serial DB9 Male (9 Pin) RS232 Cable Adapter - Sabrent
USB 2.0 To Serial DB9 Male (9 Pin) RS232 Cable Adapter - Sabrent
USB to RS-232 DB9 Serial Adapter/Converter Systembase Multi-1/USB RS232 195119000512 | eBay