Anonymous sources confided to CNET that the initial version of Intel's Light Peak technology will use copper instead of light because "practical realities dictate more conventional technology".
As originally proposed, the fiber-optic technology connects many devices to PCs with fiber-optic lines. But the initial version of Light Peak will use copper instead of light-based technologies, according to an industry source familiar with Intel's plans.
Light Peak is significantly faster than even USB 3.0, carrying data at 10 gigabits per second in both directions simultaneously. Connection speeds will not be affected by the transition to copper, according to sources.