Hi, was on the lookout for some fast micro SD cards and found this one on Currys. Went with an actual store to get a genuine one because of all the fakes online.
According to the link below is one of the faster cards for read/write too:https://havecamerawilltravel.com/photographer/fastest-microsd-cards
U3 means minimum read and write speeds of 30MB/s
This one supposedly tops out at around 90MB/s but will probably be a bit lower.
Hope this helps someone out.