Bachmann 36-559 DCC Decoder Adapter 8-Pin Decoder Socket with 21-Pin Decoder Plug

Bachmann DCC Decoder Adapter 8-Pin Decoder Socket with 21-Pin Decoder Plug 36-559
This adaptor plate is an alternative to fitting 21-pin decoders, allowing the 8-pin connector of a standard decoder harness to be adapted to fit the 21-pin connection used on many recent OO diesel locomotive models.