Pixhawk 2.1 Kore carrier board vs carrier board

Hi all !

I want to use px4 with a Pixhawk 2.1, yellow cube but I don’t know if I need a simple carrier board (https://hexadrone.fr/cube-carrier-board/2689-carrier-board-adsb-pour-pixhawk-2-hex.html) or the kore carrier board (https://hexadrone.fr/cube-carrier-board/1752-kore-carrier-board-pour-pixhawk-2-hex-0094393522454.html).

My drone is big enought to carry the kore carrier board but I don’t understand what add the kore. Do I really need a kore carrier board or the simple carrier board is ok ?

What is the benefit of the kore ? Thank you a lot

Bastien