Thunderbolt is an interface designed by Intel and Apple for connecting peripheral devices to a computer via an expansion bus.Thunderbolt is the new generation in the I/O Technologies. It is codenamed as Light Peak. It is combination of PCI Express and Display Port.
Its a Serial Data Interface. Thunderbolt is with high-speed transfer rate and dual protocol I/O interface that provides unmatched performance over current I/O technologies with 10Gbps bi-directional transfer speeds. So it supports upto It provides flexibility and simplicity in the information transfer system. It supports DATA through PCIe and VIDEO through Display Port. It can carry all the information through a single Thunderbolt Cable daisy-chain up to six devices including up to two high-resolution Display Port(v1.1a) displays.
Figure PCI Express and DisplayPort transported between Thunderbolt controllers over a Thunderbolt cable.
It multiplex the incoming information from PCI Express and Display Port at the transmitter end and carry that multiplexed information through the Thunderbolt Cable to a destination Thunderbolt Controller. This destination Thunderbolt Controller de-multiplex the information and distribute to their certain path. Actually Thunderbolt is a flexible and innovative system design ideal for thin profile systems and devices like Ultrabooks, MacBook Air etc.
Thunderbolt port is like any other ports(USB Port, LAN Port etc). Each Thunderbolt port supports 40 Gbps of aggregate bandwidth including two pairs, each pair have 10Gbps Transmit and 10Gbps Receive Lane.
Thunderbolt is starting with the launch
of Ivy Bridge. Now Thunderbolt is coming to PCs. So, we'll see it on notebooks
as well as some desktop motherboards soon. First
desktop motherboard with next-gen Thunderbolt support: MSI's Z77A-GD80.
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