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[Discuss] Thunderbolt extension cable for TBD?

Also, something I didn't know, but learned via googling:

The Mac Pro doesn't have 6 displays on one TB bus, it has 2 displays
on each of 3 TB buses. Given the lack of extension cables, I don't
understand where they want you to put all of those monitors, though.

On Tue, Oct 7, 2014 at 10:53 AM, Richard Pieri <richard.pieri at> wrote:
> On 10/7/2014 9:44 AM, Scott Ehrlich wrote:
>> I looked for thunderbolt hubs (like a USB hub) to possibly buy more
>> thunderbolt cables and use the hub as a signal repeater, but no hubs
>> exist.
> And never will. Thunderbolt is a daisy chain bus like Firewire.
> Male to female Thunderbolt extension cables don't exist and never will.
> The active signaling mechanism used within the cables themselves does
> not permit it.
> Thunderbolt is limited to six devices in a chain including the host.
> It is be possible to create a Thunderbolt null device that acts as an
> extension but it would be a Thunderbolt device and it would count
> against the six device limit.
> There are Thunderbolt (F) to mini-DisplayPort (M) cables available but
> given Thunderbolt's topology you can have only one of them and it must
> be the last device on the bus chain.
> --
> Rich P.
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