The good folks at iFixit recently opened up a Thunderbolt cable to get a look inside. Their investigation provides some explanation for the $49 cost of the Apple Thunderbolt cable. As it turns out, the cable includes a Gennum GN2033 Thunderbolt Transceiver...
Finally, you can now purchase a cable for your Thunderbolt enabled computer from Apple. The cable will cost you $50 – so it is not cheap. Right now, this is the only Thunderbolt cable in town, although, we expect to see more...
No. As of the start of 2011Q2, it is not possible to purchase a Thunderbolt cable. When they do become available, they will look like the image on the right. The Thunderbolt cable “plug” is identical to the Apple Mini DisplayPort plug....