This is a DCC Concepts DCD-SY3 Cobalt Alpha Switch Y-Connectors (3 Pack)

Need to parallel 2 or more Alpha-Switches or perhaps have one switch control two devices?

Even this is no problem… this “2 into 1” Y adapter PCB takes two switches one side, one on the other, allowing you to just plug them together – no wire cutting, stripping or soldering at all!

Each pack includes 3 Y connectors at a very low cost!