Display Port extender

[civilian1]

I'm building a mini itx machine. Using it for an HTPC. The rear of the case only has room for the psu and the MB IO shield. I have a Gigabyte GTX 970 mini which is in the front of the case. I need to extend the display ports to the rear at least 2 of them. I need it to be 4k capable.

So basically a male to female display port cable with no signal degradation around 10" long with the female end capable of being mounted to the back of my case. The case is custom, Im not changing the layout. 

I would obviously like a cheap solution. I would be willing to use a cheap breakout board if necessary. 

 

It seems like most of these cables are either the wrong length or say they only support 1080p. Im really at a loss here. HELP! 

 

Thanks

 

There are no pci slots at the rear of the case. This will be a custom fit. 

 

Edit: Maybe a better question is, can you extend a Display port without signal loss at any length. This is a panel mount I found, yet it says up to 1080p.

 

Panel Mount

[civilian1]

Ok, It seems like these unpowered displayport extenders they sell are capable of 4K, just not when used with another cable which would make the total length over 5 meters. Displayport cables are certified for 5 meters without signal loss? lol