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I-TEC - complete portfolio of accessories for laptops and desktops - external enclosures, video and audio adapters, card readers, power supply adapters etc.


i-tec USB to Serial RS232 Adapter


This USB serial device provides a simple and easy way to connect universal serial bus and serial port interface. User can simply insert a cable to an available USB slot of pc or HUB and can connect any RS-232 device or DB 9P Male connector.


In case of any problems with installation, technical difficulties or faulty fuctionallity of device find possible solution in FAQ bookmark first.


  • Support RS232 serial interface
  • Transfer rate 500 kbps
  • Compatible with USB 1.1 specification
  • Chipset Prolific PL2303
  • OS Windows ME, 2K, XP, Vista, 7, 8, 8.1, 10 or Mac OS 8.6 and higher
  • Product size 52 x 38 x 16 mm
  • Product weight 39 g
  • Package size 182 x 130 x 43 mm
  • Package weight 122 g 

Hardware requirements
IBM compatible Pentium-233 MHz, 64 MB RAM
PC with an available USP port

Operating system
Windows ME, Windows 2K, Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10 or Mac OS 8.6 and higher


  • USB 1.1 Serial adapter (55 cm)
  • Driver CD
  • User's Guide

Declaration of Conformity

Question: Connected device doesn't communicate. What now?
Answer: Please, verify adapter with another serial device or try serial device+adapter on another notebook / PC.
Question: Connected printer / cash register don't communicate via the USB 3.0. What to do?
Answer: The adapter is USB 1.1 specification, and therefore some printer / cash register cannot handle communication via the USB 3.0 port. Connect the printer to the USB 2.0 port on your notebook / PC.


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