A high-quality, self-contained USB to RS-485 adapter for use in CCTV, EPOS, industrial control and many other applications.

• FT232RL and SP485 line driver
• USB 1.1 & 2.0 compliant
• Half duplex, non-isolated
• Baud rate: 300-115200bps
• LEDs for Tx/Rx visible through top of connector
  
• Powered from PC via USB, no extra power needed
• 4 way 2.54mm (0.1in) terminal block for RS-485

This adapter uses the highly regarded FTDI FT232RL chip which is guaranteed to work with all these operating systems:

• Windows 10
• Windows 8 and 8.1
• Windows 7
• Windows Server 2008
• Windows Vista
• Windows Server 2003
• Windows XP
• Windows ME
• Windows 98
• Linux
• Mac OS X
• Mac OS 9
• Mac OS 8
• Windows CE.NET (Version 4.2 and greater)
• Android

32 and 64 bit operating systems are both supported. Latest drivers available from FTDI here. Driver installation guides are here.