Displayport Cable Length

[MiRai]

I'm not sure if I'm typing in bad search terms to Google, but I can't seem to find the following information:

What is the maximum length displayport cable that can handle 3840x2160@60Hz?

It would seem that the answer is only a mere 10 feet, but I can't actually find this on the DP site, or in any documentation. I realize that it takes some juice to power 4K@60Hz, but I was really hoping to find a cable that was at least 15 feet long. Does anyone have any insight or experience with DP cables > 10' long for such a large resolution?

Thanks.

 

[LTC8K6]

Passive 3 meters
Active 33 meters

According to wiki

https://en.wikipedia.org/wiki/DisplayPort

http://www.engadget.com/2011/06/22/displayport-1-2-adds-active-cable-support-brings-longer-cords/

 

[MiRai]

http://www.engadget.com/2011/06/22/displayport-1-2-adds-active-cable-support-brings-longer-cords/

This is what I need. I need to find some active cables.

Thanks.

 

[ViRGE]

Note that it needs to be a quality cable though. DP at 4K@60Hz is basically the maximum bandwidth for 1.2, so there's little margin for signal loss.

 

[MiRai]

The only active displayport cable I can find is this one from StarTech. Unfortunately, its listed specs show that it "offers a bandwidth of 10.8 Gbps with support for maximum resolutions up to WQXGA (2560×1600)."

I do have an HDMI 2.0 port on my display, so I did find this cable which comes in options of > 10 feet, and says its rated up to 18Gbps. According to that DP Wiki entry, the sample data rates show that 2160@60Hz eats up anywhere between 12.5 - 14.5 Gbps, so I'm hoping I should be fine.