Provided is a connector to be securely fixed on a board, especially, the connector having a high-strength shell prevented from detached from the connector. The connector has a mating portion, a plurality of the contacts, a holding member holding the contacts and a shell and to be connected with a mating connector in a front-back direction. The mating portion is positioned in forward part of the connector. The holding member is formed with a protrusive portion protruding backward. The protrusive portion is formed with a receiving portion. An edge of the shell is formed a stopper portion. The stopper portion and the receiving portion face to each other in the front-back direction. The contact has a contact-fixing portion fixed on the board. The shell has a shell-fixing portion fixed on the board. A distance between the shell-fixing portion and the mating portion is larger than another distance between the contact-fixing portion and the mating portion.