USB to RS232 Adaptor (DB9 DB25)

USB to RS232 Adaptor (DB9 DB25)

Spectra's range of interfaces and adaptors for use with our signs. Cost-effective, easy to use and extremely reliable. Specifically designed for use with our products, sadly we cannot guarantee they will work with other brands.

£18.00 ex VAT
In stock


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Spectra has a whole host of LED Displays and Signs to suit your requirements; check out the rest of our Indoor LED Displays.

This USB to RS232 DB9/DB25 Serial Adapter Cable (M/M) lets you connect 9-pin (DB9) or 25-pin (DB25) RS232 serial devices to your laptop or desktop computer through a USB port, as though the computer offered an onboard serial port. The integrated 3-foot (0.9 meter) cable allows it to be connected directly from the serial device to the computer without requiring additional cables.

A cost-effective solution that bridges the compatibility gap between modern computers and legacy serial peripherals, this high quality USB/RS232 Serial Adapter cable ships with a DB-9 to DB-25 adapter for connection to varied serial equipment.

Backed by a 2-year warranty and free lifetime technical support.

  • This versatile device ships with a 9-pin connector, and a 25-pin RS232 adapter for a variety of connection options
  • Integrated 3ft cable allows you to connect directly to your serial devices
  • Plug-and-Play/Hot-swap support enables you to add and remove this adapter without having to reboot the computer


Included in Package 1 - 3ft USB to RS232 Cable

  • 1 - DB9 to DB25 Serial Adapter
  • 1 - Driver CD
  • 1 - Manual



Item Description
Bus Type USB 2.0
Chipset ID Prolific - PL-2303
Interface Serial
Port Style Cable Adapter
Ports 1
Data Bits 4, 5, 6, 7, 8
FIFO 512 Bytes
Flow Control None, Xon/ Xoff, Hardware
Max Baud Rate 230.4 Kbps
Parity None, Even, Odd, Mark, Space
Serial Protocol RS-232
Stop Bits 1, 1.5, 2
Connector Type(s) 1 - USB A (4 pin) Male
External Ports 1 - DB-25 (25 pin; D-Sub) Male, 1 - DB-9 (9 pin; D-Sub) Male
Microsoft WHQL Certified Yes
OS Compatibility Windows® 10 (32/64), 8 / 8.1 (32/64), 7 (32/64), Vista (32/64), XP (32/64), 2000, ME, 98SE, XP Embedded, POS Ready 2009, Embedded System 2009, CE 4.2/5.2, Windows Mobile 5/6, PocketPC 2003 / 2000 Windows Server® 2012, 2008 R2, 2003
OS Compatibility Mac OS® 10.x (tested up to 10.11) Linux 2.4.x - 3.9.x
Humidity 5~85% RH
Operating Temperature 0°C to 70°C (32°F to 158°F)
Storage Temperature -40°C to 85°C (-40°F to 185°F)
Cable Length 3 ft [0.9 m]
Colour Grey
Enclosure Type Plastic
Product Length 3 ft [0.9 m]
Product Weight 2.5 oz [70 g]
Shipping (Package) Weight 3.2 oz [90 g]

Please see below for associated downloads.