Intel has confirmed rumors that it's temporarily switching to copper wires for use in the company's Light Peak connection technology. While that might upset those who were looking forward to the, well, "light" part of Light Peak-fiber-optic cabling-it will nevertheless allow Intel to get Light Peak out the gate faster than anticipated.

Although data transmission speeds will reach higher levels with fiber-optic cabling-including a proposed scale of up to 100 gigabits per second within a decade-the reality on the ground is that optical cabling is quite expensive compared to copper.

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