A shielded connector unit includes a lower shielded connector to be connected downwards to a lower positioned first instrument, an upper shielded connector to be connected sideways to a second instrument positioned above the first instrument, and a flexible conductive part made up of an electric wire which is adapted to connect the lower shielded connector to the upper shielded connector and a braid which is adapted to enclose a bare portion of the electric wire existing between a shielding shell of the lower shielded connector and a shielding shell of the upper shielded connector. The shielded connector unit further includes a hard protector that is adapted to enclose and protect the conductive part from the outside while ensuring flexibility of at least a portion of the conductive part.