Firmware version 1.4b of the ELM327 was introduced in 2010, and continued to be a very strong seller until the ELM327 v2.0 was released in 2013. Several larger customers did not want to go through retesting of their designs with the new v2.0 chips however, as their v1.4b products were working well. To accommodate these customers, we continued to offer the v1.4b product, in addition to any new ones.
A further 5 years has now passed and sales of the v1.4b product are at a point where we have decided to discontinue sales of it. Once our stock levels are depleted, we will be removing it from our web store.
Many thanks to all that have purchased the ELM327 v1.4b over the years. The ELM327 v2.2 is a pin and software compatible replacement, should you need one.