The first such optical Thunderbolt cable was introduced by Sumitomo Electric Industries in January 2013.[30] It is available in lengths of 10 metres (33 ft), 20

The first such optical Thunderbolt cable was introduced by Sumitomo Electric Industries in January 2013.[30] It is available in lengths of 10 metres (33 ft), 20 metres (66 ft), and 30 metres (98 ft). However, these cable only retail almost exclusively in Japan, and the price is 20–30× higher than copper Thunderbolt cables. Copper cable is limited to 9.8 feet (aka 3 meters in the rest of the world), but optical cables can be up to 330 feet/100 meters. That price looks nasty, though.