In reply to Frankie boy:
Read the packet/instructions, there are different capacities - what is the biggest size it supports, that might be written as 256GB (or something) or it might be written in some weird geeky code like SDHC, SDXC (etc etc)
What does it say for capacity?
Next how fast can it accept being written to, this again depends also on what the cam supports - does the packet say anything? (if not google the cam and see if you can see the specs). Is it an HD cam? as that writes more stuff to card than SD cam? Most likely the speed will be shown as a letter "U" with a number in it, or written out UHS, probably either UHS1 or UHS3
What does it say for speed?
Post edited at 08:02