Moxa Serial to USB converters. A large range of serial to USB including RS232, RS422, RS485 connections. These are good quality devices and are supplied with the driver software for use on Windows 9X/ME/2000, Windows XP/2003/Vista/2008/7 x86/x64, WinCE 5.0/6.0, Linux 2.4, Linux 2.6 x86/x64.