Brainboxes US-257 2 Port RS232 USB to Serial Adapter, Lifetime Warranty, Plug-and-Play Installation

Brainboxes US-257 2 Port RS232 USB to Serial Adapter, Lifetime Warranty, Plug-and-Play Installation
Brainboxes US-257 2 Port RS232 USB to Serial Adapter, Lifetime Warranty, Plug-and-Play Installation
Brainboxes US-257 2 Port RS232 USB to Serial Adapter, Lifetime Warranty, Plug-and-Play Installation
Brainboxes US-257 2 Port RS232 USB to Serial Adapter, Lifetime Warranty, Plug-and-Play Installation

Brainboxes US-257 2 Port RS232 USB to Serial Adapter, Lifetime Warranty, Plug-and-Play Installation

Brainboxes US-257

$119.49
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  • Carbon Neutral
  • Lifetime Warranty
  • 30 Day Returns

Product Key Features

  • 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
$119.49
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  • Description
  • Tech Specs
  • Refund Policy

Brainboxes US-257

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.

More from the Manufacturer

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.

​Operating Systems

Return Policy

Time to Return

Standard Return Policy

Refund or Replacement within 30 days of the delivery date. All products that fall under the Standard Return Policy qualify for our 30-Day Hassle-Free Returns. Please see the section above for more details.

Replacement Only Return Policy

Replacement within 30 days of the delivery date.

Manufacturer Only Return Policy

Covered by the manufacturer's warranty. Please refer to the terms and conditions for the manufacturer's warranty or contact the manufacturer.

Holiday Extended Return Policies

Extended Holiday Return Policy.

Qualifying purchases of products displaying the " Extended Holiday Return Policy ", from November 1st, 2023 to December 25, 2023, are eligible for a Refund or Replacement until January 31, 2024.


Extended Holiday Replacement-Only Return Policy

Qualifying purchases of products displaying the " Extended Holiday Replacement-Only Return Policy ", from November 1st, 2023 to December 25, 2023, are eligible for a Replacement until January 31, 2024.

FAQ
Yes, the Brainboxes 2 Port RS232 USB to Serial Adapter is compatible with Mac computers, along with PC and Linux systems.
This adapter has two serial ports, allowing you to connect and control two serial devices simultaneously.
Not at all! The Brainboxes 2 Port RS232 USB to Serial Adapter comes with an installation CD that includes a manual and Microsoft signed drivers. Simply follow the instructions for a hassle-free installation.
Yes, the adapter is DIN rail mountable, providing a convenient and secure mounting option for industrial applications.
Absolutely! The Brainboxes 2 Port RS232 USB to Serial Adapter comes with a lifetime limited warranty, ensuring peace of mind and long-term reliability.

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