US-257 - USB 2 Port RS232 1MBaud


  • 2 port RS232
  • 128 Byte Tx and 384 Byte Rx FIFOs
  • Up to 921,600 Baud
  • DB9 Connector - 9 Pin Male connector (9 Pin Male)
  • IP-30 rated enclosure
  • Drivers for all popular operating systems
  • LED status indication
  • Supplied with USB cable
  • Supplied with rubber feet for office environment
  • Optional DIN rail mounting kits
  • Lifetime Warranty* and Lifetime Support



  • 2 Port RS-232 USB to Serial Adapter
  • Data rate from 300 to 921,600 baud
  • High Retention USB Socket
  • Drivers for all popular operating systems including Windows 10
  • Works where many other USB to Serial devices do not
  • Lifetime Warranty and Support

USB to Serial adapter providing two RS232 serial ports. Data transfer rates up to 921,600 baud rates and the 128 byte transmit and 384 byte receive FIFOS, coupled with 1Mbit line drivers deliver uncompromising performance on your laptop/PC. High retention USB port gives a secure connection.

Drivers for Windows 32 bit and 64 bit Drivers for Windows 32 bit and 64 bit Operating Systems including Windows 10, Windows 8, Windows 7, Server 2008, Vista, Server 2003 and Windows XP with additional drivers for Raspberry Pi, Mac OS X and Linux. Lifetime warranty and support.

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