Help!! 240 / 480hz displayport cable

[Gypo]

Can anybody link me to or knows if it's possible to get a 5m long displayport cable that can do 240hz at 4k or 480hz at 1440p?

 

[Mr Mcgoo]

technically yes but it isn't cheap and can't link a competitor. look on the rainforest and you will have to use dsc (compression) for it to work on dp1.4