Without any devices initially being available for it, Apple's Thunderbolt technology was relatively dormant in the public eye after its debut in the latest MacBook Pro and iMac systems. However, since the release of the Promise Pegasus RAID system, Apple's accompanying Thunderbolt cable, and some recent firmware updates for it, Thunderbolt appears to have caught a new wave of interest, particularly around the cable itself. People have wondered not only about its compatibility with Displayport (which has a similar connector as Thunderbolt), but also about its seemingly expensive $49 price tag.
iFixit today released a teardown of the cable to look at its components and in doing so revealed that the cable's unusually large connector jackets actually house a controller that is used to boost and condition the signal so it makes it from one end of the cable to another without any data loss.
Not only does the cable contain chips, but it contains a fair number of them. Each end of the cable contains six chips, with a large controller by gennum technologies, and a number of other smaller electrical components on printed circuit boards. Gennum technologies provides signal conditioning chips that allow for data transfer at high speeds. This technology appears to be the root of the cost for the cables.… Read more