10PCS DCC 21Pin to 8Pin Adaptor/Converter for NEM652 Moble Locos Decoder to 21MTC Model Railway Trains 860004/LaisDcc Brand|decoder dcc|dcc locodcc loco decoder - AliExpress
30 How-to: Using a 21-pin decoder in a locomotive with an 8-pin socket - YouTube
8-Pin Decoder to 21-Pin Socket Adaptor (DCC 8 Pin NEM65 Socket to 21 MTC Socket) | eBay
#30 How-to: Using a 21-pin decoder in a locomotive with an 8-pin socket - YouTube
21 to 8 Pin Adapter (3 Pack)
TCS ~ EU821 MTC 21 Pin Socket ~ DCC Motor Decoder ~ 8 Function ~ 1674 | eBay
10PCS DCC 21Pin to 8Pin Adaptor/Converter for NEM652 Moble Locos Decoder to 21MTC Model Railway Trains 860004/LaisDcc Brand|decoder dcc|dcc locodcc loco decoder - AliExpress
Converting an 8 pin decoder to 21 pin - YouTube
10PCS DCC 21Pin to 8Pin Adaptor/Converter for NEM652 Moble Locos Decoder to 21MTC Model Railway Trains 860004/LaisDcc Brand|decoder dcc|dcc locodcc loco decoder - AliExpress
Converting an 8 pin decoder to 21 pin - YouTube
21pin Adapter Boards available through Coastal DCC
21 to 8 Pin Adapter (3 Pack)
30 How-to: Using a 21-pin decoder in a locomotive with an 8-pin socket - YouTube