TowSmart 7 Blade Vehicle Side Connector is designed for use with large trailers, including R and industrial trailers. This connector three additional functions beyond the standard 4-pole connectors: electric brakes, an auxiliary power lead, and a backup/reverse function, making it a versatile and essential component for towing needs. It features a tow vehicle end socket made of durable plastic and is intended to be used with the Model 48505 end plug for a complete connection setup. The connector type is 7 Blade, and it comes packaged in a box with a quantity of one. Model Number: 48485