A particular connector is for selectively connecting a first and a second mating connector which are insertable into the particular connector from mutually perpendicular directions, respectively. The particular connector includes a contact and a housing holding the contacts. The contact has a first a second contact portion which are for contacting with the first and the second mating connectors, respectively. The housing includes a first fitting portion provided with a first insertion opening for inserting the first mating connector, a second fitting portion provided with a second insertion opening for inserting the second mating connector, and guide portions which define the first and the second insertion openings, respectively. By the guide portions, the first and the second mating connectors are allowed to be selectively connected to the connector.