This is an optional programming module for the SU-320 and SU-3280 universal programmers.
This module goes in place of the original single DIP48 socket module, giving you four NOR-TSOP48 sockets for up to 4x gang programming.
Note: The picture shows the SOP8-207 version of this adapter.
If you have the SU-3280, purchase four of these modules to achieve up to 16x gang programming capability.
There is a status LED under each socket, so you can tell when each site has finished programming.