Serial dongles are still in demand today. KEYLOK continues to offer these cost effective, powerful devices.

Download KEYLOK2
Serial Data Sheet

  • Works with any hardware that supports RS232 communications
  • Both DCE and DTE port versions available
  • CPU manages communications to/from application
  • Power management and voltage regulator ensures proper power flow


  • Driverless
  • Windows, Mac, Linux
  • Protect multiple applications with one device
  • Available for Networks (Windows) to enforce concurrent usage
  • Implement creative licensing models including Expiration Date, Features and Counters
  • Remote Update dongles in the field
  • 112 Byte Read/Write Programmable Memory

OS and Development Tools

Operating Systems

Development Tools

  • Windows
  • Microsoft Visual Basic
  • Linux
  • Microsoft Visual Studio (Visual C/C++/C#)
  • Mac
  • Linux (C)
  • UNIX

Tech Specs

Use our serial port devices on any hardware that supports standard RS232 communications. No drivers required. Both DCE and DTE versions available.

Storage Temperature -10° F to 175°F (-23° C to 80° C)
Operating Temperature 32° F to 157° F (+0° C to +70° C)
Dimensions / Connectors
USB 3/8” x 5/8” x 1 7/8” (9 x 17 x 49mm) Standard USB port
Serial 5/8” x 1 ¼” x 2 3/8”, Body 2 1/16” (16 x 33 x 63mm, Body 53mm) DB9 on both sides
Parallel ½” x 1 ¾” x 2 3/16”, Body 1 ¼” (15 x 47 x 55mm, Body 33mm) DB25 both sides. 1.2oz
Programming ROM Programmed by KEYLOK
Data retention At least 10 years
Programming RAM 112 Bytes / 1 Million Write cycles per location / Unlimited Read cycles
Encryption Random Proprietary Encryption Algorithms
Authentication Password 296 possibilities
Read Password 2128 possibilities
Write Password 2176 possibilities
USB No more than 15 milliamps
Serial Operates at 3.3V, Designed to output +/-5V, Consumes less then 2 mA in receive mode and less than 5 mA in send mode