Tablet How to root SGP312U1/B

Hi! I recently bought myself a Sony Xperia Tablet Z (SGP312U1/B). Any ideas on how to root it?
I have never had a Xperia device before so I'm not familiar with the way of rooting them.
Anyone that could perhaps tell me step by step on how to root it with Supersu or make/link a youtube video that tells me exactly what to do?
It's running android version 4.3 btw. I will highly appreciate the help and so will others.