If you are looking for the best DCC controller for OO gauge locomotives, then the classic eight-pin micro decoder (BPDCC22) from the mentioned company is a great option to consider. This decoder comes in a pack of five, each with a harness to an eight-pin plug, and is specifically designed to be compatible with OO gauge trains. It offers advanced features such as 14/28 speed steps, motor isolation protection, and two and four digit addressing, as well as advanced consisting capabilities. Furthermore, it has a 1A motor output (2A peak) with two 0.5A function outputs, making it a highly cost-effective solution for your railway needs. Its small size also ensures that it won't take up too much space on your train layout, measuring just 10.6mm x 8.7mm x 2.8mm.