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For shipping to USA, Canada and Mexico only. Please send inquiries to for the rest of Americas.
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For shipping to USA, Canada and Mexico only. Please send inquiries to for the rest of Americas.
Please visit for other regions.

USB to RS485 adapters (FULL SPEED)

SKU USB2-F-5001

< USB2-F-5001 earliest delivery date in February 2021>

The USB2-F-5001 provides a simple method of adapting legacy serial devices with RS485 interfaces to modern USB ports.  This is accomplished by incorporating the industry standard FTDI FT232R USB-Serial bridge chip.

Each USB2-F-5001 adapter contains a small internal electronic circuit board which utilises the FTDI FT232R, mounted inside a rugged plastic enclosure capable of withstanding industrial temperature ranges. The integrated electronics also include RS485 level shifters and TXD/RXD LEDs to provide a visual indication of data traffic through the adapter.

Flexible mounting allows the USB2-F-5001 to be used in a variety of applications, from a portable adapter to accompany a laptop to permanent installations in industrial, commercial and retail locations.

The enclosure incorporates a standard USB-B client connector for connection to an upstream host or hub port.  RS485-level signals, are available on an industry-standard DE-9P (DB9) connector.  The maximum RS485-level data rate is 1Mbps.  

The USB2-F-5001 adapter require USB device drivers, available free from, which are used to make the USB2-F-5001 appear as a Virtual COM Port (VCP). This allows existing serial communications software, such as HyperTerminal, to exchange data through the USB2-F-5001 to a legacy RS485 peripheral device.

Pin 9 of the D-sub connector can provide +5V power output with maximum 450 mA.  


  • Adds one RS485 serial port by connecting to USB 
  • Easy plug & play installation and RS485 device connection
  • Works with USB 1.1 & 2.0 Host and Hub ports
  • Industry Standard FTDI chip set & device drivers for maximum compatibility
  • Microsoft Windows® WHQL-certified, Mac OS X, Linux and Windows CE device  drivers
  • Installs as a standard Windows COM port 
  • COM Port Number assignment is configurable
  • FIFO: 128 byte transmit buffer, 256 byte receive buffer
  • RS485 data signals: Data+, Data-, GND
  • Powered by USB port. No external power adapter required.
  • Pin 9 of DE-9P (DB9) can provide +5 VDC output at 450 mA
  • Serial port speed up to 3 Mbps
  • Serial Communication Parameters 

          o Parity: None, Even, Odd 
          o Data bits: 7, 8 
          o Flow control: None

  • One DE-9P (DB9) male connector 
  • LEDs indicate USB Enumeration, RxD, TxD for monitoring port status & easy diagnostics
  • High-temperature plastic enclosure
  • Operating temperature of -40°C to +85°C
  • USB cable of 0.9 meter included
  • CE / FCC Approved
Part Number Document Type Version File
USB2-F-5001 Full-Speed USB to 1-Port RS485 Adapter Datasheet 1.1 Download
USB2-F-5001 Quick Start Guide 1.2 Download

Download Virtual COM Port (VCP) Drivers for Windows, Mac OS and Linux

Order Information
SKU Ports Housing Connector
USB2-F-5001 1 ABS USB-B