So, let's open up by busting that Thunderbolt is only for Macs myth. It
was co-developed by Apple and Intel, but the full rights were eventually
transferred to Intel, and now anyone can implement it. And since I've got my
history lesson hat on, I might as well give you guys another little factoid.
The original prototype cenamed Light Peak was actually an optical technology,
which would have enabled higher transfer speeds and longer cables. But since
copper can carry power in addition to data, and Intel saw better than expected
results when testing with copper, all of the Thunderbolt cables you see today
will have connectors on each end that look exactly like mini DisplayPort, but
with little lightning bolt symbols on them and with only copper wires inside
them. But what do those wires do, Ven Lionus? Well, they carry a combination
of PCI Express and DisplayPort on one
serial signal, as well as a DC connection for power, all wrapped up in
one cable. This means that the Thunderbolt interface can be used to
connect and power display, audio, and
storage devices, as well as USB, FireWire, and gated Ethernet via
adapters. I mean, the sky's is pretty much the limit. To top that off, you can
run up to six total devices at a time off of a single connector by daisy
chaining them all together or by connecting to a hub. Cool stuff. And
while I don't think it's fair to say that Thunderbolt 1 took the market by
storm compared to USB 3, it was very expensive, it was certainly a standard
unlike anything that we had seen before. And it continues to evolve. In 2013,
Thunderbolt 2 arrived with some big changes. Bandwidth was doubled to 20
Gbit birectional, enough to watch 4K video while simultaneously running a
high-speed storage device over one cable. And maximum transfer speeds were
raised to 1,500 megabytes per second,
though overhead and PCI Express limits keep you from hitting speeds even close
to that max spec in the real world. On top of that, it maintained the same
connector, which means V1 and V2 are intercompatible. The link will simply
operate at the speed of the slower device. All right. Well, that's it then,
right? 20 Gbit per second simultaneously with 4K video and you get your
high-speed storage through one cable. It's that I mean, that's enough, right?
No, we need more
power. Excuse me. Not really sure what happened there. Anyway, we need more
power. And by that, I mean we need higher speeds and greater capabilities
with less actual power consumption. 50% less if we can rely on a leaked slide of
Thunderbolt 3 specs from April 2014. This new format is rumored to come with
a doubling of the current Thunderbolt bandwidth from 20 to 40 Gbit per second.
And it'll be capable of four modes, including HDMI 2.0. Woo, cool. It should
have support for PCR Express Gen 3 and is rumored to be capable of charging
devices that require up to 100 watts of power. The bad news is that it's also
rumored to require a new connector. So, adapters will be needed for backwards
compatibility. Now, while we haven't yet reached the 100 Gbit per second maximum
speeds over Thunderbolt that Intel promised when they released the protocol, I've seen unofficial
statements projecting that speed by around 2020, but nothing confirmed yet.
We're still very early in the life cycle, and at the rate Thunderbolt's
been moving, I'd be surprised if it takes that long. And I'm very excited to
see the future of this. It's uh very promising, but still very expensive
technology. Speaking of things that are very expensive, going to the store and
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