This product is a Private Label Terminal Block for O Gauge model trains, manufactured by Miniature Electronics (MINIATRONICS) and sold under the MTH 50-1014 product code. The PDB-1 Terminal Block is designed to provide a convenient and organized way to connect wires and power sources to your model train layout. It is compatible with a variety of RC Model Vehicle Parts & Accessories, including Speed Controllers and Radio Control & Control Line components.