Optical cross-connect device

An optical cross-connect configured to switch connections between optical fiber cores on an even number of four or more routes, the optical cross-connect comprising:

• optical switches connected to the respective optical fiber cores on the individual routes;
• and
• optical fibers configured to connect the optical switches between each other, wherein
• each of the optical switches includes
• a first ferrule which is a ferrule disposed to expose each of the optical fiber cores at end surfaces and at which each of the optical fiber cores on a route that is connected to each of the optical switches is disposed,
• a second ferrule which is the ferrule and at which each of the optical fibers that connect the optical switches between each other and are connected to the optical switches is disposed, and
• a sleeve configured to support the first ferrule and the second ferrule inside such that the end surfaces of the first ferrule and the second ferrule face each other and the first ferrule and the second ferrule are rotatable relative to each other along an inner wall of the sleeve.