An endoscope apparatus includes: a camera including an imaging unit configured to receive light and convert the light into an electric signal a first cable configured to transmit the electric signal, one end of the first cable being connected to the camera an operating unit connected to another end of the first cable and including an electrooptic conversion unit configured to convert the electric signal transmitted through the first cable into an optical signal, and a switch configured to receive user operations a second cable configured to transmit the optical signal, one end of the second cable being connected to the operating unit and a connector provided to another end of the second cable and configured to connect the other end of the second cable to an external device.
