REFERENCE /// BRA562 - TOS Male - TOS Male (2M) BRA562 Connects digital audio device to an AV Receiver with digital optical conection. DIGITAL OPTICAL / BEA562 - TOS Male - TOS Male 2M Connects digital audio device to an AV Receiver with digital optical conection Ultra high grade, medicale fibre optic core makes this a perfect high class cable. TOSLink compatable for the best signal transfer.