Tamron TAMRON CC-350 [TAMRON Connection Cable - Cable for TAMRON Lens Utility (Connector: USB Type-C to Type-C)] This connection cable is used to directly connect a lens to a PC, such as when updating the firmware of compatible Tamron lenses. This cable is recommended when using "TAMRON Lens Utility Mobile" or "TAMRON Lens Utility". * Connector type: USB Type-C to USB Type-C I purchased this new at Yodobashi Camera, but I only opened it and have never used it! It has been stored in a dehumidified storage unit! #tamron #タムロン