Intel's Thunderbolt gets off the ground

lntel's Thunderbolt interconnect technology will transfer data at speeds of 10 gigabits per second

By , IDG News Service |  Hardware, Thunderbolt

Intel's Thunderbolt interconnect technology, formerly called Light Peak, has emerged from the company's lab and will soon find its way into product, including Apple's new line of MacBook Pro laptops, Intel said Thursday.

First announced in 2009, Intel's Thunderbolt technology will transfer data between host devices and external devices at speeds of up to 10 gigabits per second, Intel said on its website. Thunderbolt will be able to transfer a full-length high-definition movie from an external storage device to a PC in less than 30 seconds.

Apple will be the first to offer Thunderbolt technology in its new line of MacBook Pro computers, also announced Thursday, and other companies such as LaCie and Western Digital will offer products based on the technology in the future.

The technology was specially designed for audio and video enthusiasts, Intel said. Users can get real-time processing by synchronizing high-bandwidth audio and video between PCs and other devices, cutting the lag time that exists with other technologies.

Contrary to what Intel said when the company first talked about Thunderbolt in 2009, it will not use light to provide high-bandwidth data transfers between devices, an Intel spokeswoman said in an e-mail, without providing further detail.

Initial builds of Thunderbolt will be based on copper, David Perlmutter, executive vice president and general manager of Intel's Architecture Group said in an interview at CES last month. Optical technology is expensive and will be implemented over time as it gets cheaper, he said.

For the majority of user needs today, copper is good, Perlmutter said. But data transmission is much faster over fiber optics, which will increasingly be used by vendors in Thunderbolt implementations.

Thunderbolt could compete with connector technologies such as USB, Firewire and HDMI (high-definition multimedia interface), which link PCs to external storage, audio devices and displays. Laptops and devices with USB 3.0 ports started reaching store shelves last year and offer data transfer speeds up to 5 gigabits per second. Intel has held off support for USB 3.0 on its PC chipsets, which has been a topic of concern for PC makers, which have had to implement third-party controllers to add USB 3.0 ports to laptops.

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