OBD2 All-In-One USB v2.1 but not the other way

but not the other way around

If you have a 1996 or later obd-2 car

Starting in 2016 All heavy equipment vehicles are equipped with the new high speed J1939 Type 2 system

For larger quantities

OBD2 All-In-One USB v2.1 but not the other wayELM Electronics, the inventor and maker of the ELM327 chip closed its doors in mid 2023. There is no longer a supply of new ELM327 chips. ELM327 compatible scan tools on the market are using knock offs or clones of the original ELM327 chip, which may or may not be fully ELM327 compatible. We have a very limited supply of original ELM327 chips of prior versions, that are available below. When they're gone, they're gone!