ThunderBolt Sony, it's optical

Zoom sur le câble optique inséré dans le port USB 3.0 classique (source : Sony)

The Sony Vaio Z is definitely an impressive machine. Not only this notebook is thinner than the MacBook Air from Apple and offers a significantly higher power through its Core i7, but it is also the first machine of the market to have a Light Peak optical port.

Where Apple has chosen a hybrid implementation of Light Peak, with a copper cable and connector owner, Sony took over the original design of Intel: a USB connector and an optical interface. The port connecting the Vaio Z with its external graphic card home station (called Power Media Dock, LDC) can also serve as a classical USB 3.0 port. This implementation seems us much more logical and practical to use: for example, Apple, the ThunderBolt is also used to connect the screen, but it should be at the end of the chain which cannot disconnect a ThunderBolt drive without disconnecting its screen. From the point of view of performance, the two implementations should be identical, providing 10 Gbit/s of bandwidth in each direction.

This divergence between Sony and Apple raises the question of the viability of Light Peak or ThunderBolt in the long term. Wrong to imagine a manufacturer of hard drives develop yet another range of products. Term, if Light Peak is resistant, a single variant survive in the market. And Sony for the benefit of compatibility with the USB. It now expected the reaction of other PC manufacturers to this technology forward.


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