In reply to supersteve:
I remember when I got my first 128mb compact flash card for my Nikon Coolpix 885 camera.
It was in excess of £100 and I though this would do me for ever.
Today my digital camera has two slots with to 128Gb cards with write speeds of 200mbps.
What will kit need in 5 years time?
I'm guessing SSD or Nvme drives because SD cards are getting too expensive for their limited storage size.
As for the GoPro, what bit rate does it record at?
This will give you an idea of what card you need.
BTW still got my Coolpix 885 camera.