Best Display port 1.2 cable?

[Toysoldiers35]

I have been looking for a good quality display port 1.2 cable to carry 4K footage at 60 hertz. From the ones Ive looked at they either have bad reviews for not working correctly or have a sleep issue. I haven't been able to find one so maybe someone will know. I am using a Dell Up2414q

 

[10tacle]

Accell...I have several of these for my 1440p monitors and they work great in 4K for 60Hz....

http://www.amazon.com/Accell-UltraAV-B142C-010B-DisplayPort-Latches/dp/B0098HVXVQ

Also just FYI regarding wake up issues and Dell specifically, it's a monitor firmware problem, not a cable problem from what I've read.