The cartrend adapter for trailers from 7 to 13 poles serves as a universal connector between incompatible connections. This adapter is designed for situations where a modern vehicle is combined with an older trailer. New vehicles typically have 13-pin sockets, while older trailers, especially flatbed ones, often still have a 7-pin trailer plug. This 7 to 13 trailer adapter can be directly attached to the vehicle's socket, allowing for a connection. One advantage is the compact design of the cartrend mini-adapter, which extends only a few centimeters beyond the original socket and takes up minimal space. The trailer plug can then be connected to the adapter. A bayonet lock ensures a secure hold, preventing the connection from coming loose during travel. At the same time, this bayonet lock can be operated with a single hand. The cartrend 7 to 13-pin trailer adapter meets both ISO 1724 and 11446 standards, which define the specifications for 7- and 13-pin electrical connections in vehicles. Thus, the 7 to 13-pin adapter is approved for current strengths up to 20 A and operates at a voltage of 12 V DC. The cartrend adapter for trailers from 7 to 13 poles is made from impact-resistant plastic, making it very robust and durable.