Connector inserts having latches, bayonets, or similar structures as retention features. The connector inserts may include these bayonets on one or more sides or other portions of the connector insert. The bayonets may be located inside of a connector insert while the connector insert is being inserted into a receptacle, thereby reducing wear and marring of the receptacle. The bayonets may extend out of a connector insert when the connector insert is inserted into the connector receptacle and may engage corresponding retention features in the connector receptacle, thereby reducing the chances of an inadvertent disconnection. When the bayonets are located inside the connector insert, the connector insert may be in a first state, while when the bayonets are extended, the connector insert may be in a second state. The connector insert may retain state in either the first or second state in the absence of a user applied force.