Log In

Celebrating 43 Years

Follow us on Facebook for all the latest news, updates and promotions


Credit Cards Accepted

website security

USB to Serial Adapter
for all GTCO, Calcomp and Summagraphics Digitizers.
(Works with Tabletworks)

gtco logo



US Pricelist
CND Pricelist

Privacy and Security
Looking for a way to connect your GTCO, Calcomp or Summagraphics serial device to the USB port on your PC? Our USB High-Speed Serial Adapter provides a simple and reliable solution. This adapter is recommended by GTCOCalcomp due to its dependability and compatibility. Windows 10 32/64 bit compatible. This adaptor works with and is recommended for use with the GTCOCalcomp Tabletworks Driver. (Also works with vtablet.com driver)

Key Features

  • Windows 10 Drivers available
  • Certified: Microsoft WHQL approved
  • High Speed: Supports 230 Kbps - twice the speed of a built in serial port
  • Detachable Cable: Use adapter with any USB cable (up to 5 meters long)
  • LED: Shows adapter status and data activity
  • Plug & Play: Appears as standard COM port
  • Mobile: Easy to carry - weighs just 2 oz.
  • Bus Powered: No external power adapter required
  • Analytic Tools: Includes Windows line monitor and data trace software
  • Field Upgrade: Easy to update over time with free software downloads
  • Easy Expansion: Supports use of multiple adapters on one PC
  • Works with Tabletworks and WinTab drivers from GTCOCalcomp (Most 3rd party adaptors will not work)

System Requirements

 Windows or Mac:

  • An available USB port
  • Compatible with Windows 98, 98 SE, Me, 2000, XP 32- and 64-bit, 2003 Server 32- and 64-bit, Vista 32- and 64-bit, and 7 32- and 64-bit, 2008 Server R2 64-bit, 8 32- and 64-bit, 2012 Server 64-bit, 2012 Server R2 64-bit, and 8.1 32- and 64-bit, Windows 10 (32 & 64 bit)

Can also be used with all RS-232 serial devices including modems, GPS devices, cell phones, hand held scanners, networking equipment (console port), graphics tablets, point of sale devices, touch screens, UPS devices, medical and scientific instruments, industrial process control devices, building automation instrumentation and other serial devices.

Package Includes

  • High-Speed USB to Serial Adapter
  • 3 ft. USB device cable
  • CD with driver software and user guide
  • 2 Year Limited Warranty


Buy the Adapter here:


USA Office

Address: 1480 Gulf Road, Suite 837,
PO Box 1280
Point Roberts, WA 98281

Western Canada - Vancouver BC

Tel:1.800.663.6001 or 1.604.925.6150
Address: 2454 Haywood Ave
West Vancouver, BC V7V 1Y1

Eastern Canada - Markham, Ontario

Tel:1.800.465.0164 or 1.905.513.7027