WOW101-Steam - UPGRADE - $39.95 each. Two or more $34.95 each!

Version 4.6 is the latest version including 12 Chuffinity chuff sets. The 4.6 decoders were first produced in April 2022. For a full list of changes, please review our WOWSteam V4.6 Changelog.

This upgrade program will update your WOW101-Steam decoder to the latest production version available from TCS. As part of the upgrade process, following this registration you MUST return the decoder to TCS headquarters for updating. See the Shipping Instructions tab for more information.