Bought new ones to my gopro, so instead of buying a new 8/16gb card I took a leftover, simple as that my friend 
Test from an RPi2 with an Transcend Ultimate 600x 8GB microSDHC card (TS8GUSDHC10U1).
root@osmc:/home/osmc# dd if=/dev/zero of=test bs=1M count=512 conv=fdatasync
512+0 records in
512+0 records out
536870912 bytes (537 MB) copied, 57.0835 s, 9.4 MB/s
root@osmc:/home/osmc# free && sync && echo 3 > /proc/sys/vm/drop_caches && free && dd if=test of=/dev/null bs=1M count=512
512+0 records in
512+0 records out
536870912 bytes (537 MB) copied, 27.0694 s, 19.8 MB/s
root@osmc:/home/osmc# ioping -D -R .
--- . (ext4 /dev/root) ioping statistics ---
4.52 k requests completed in 3.00 s, 1.53 k iops, 6.00 MiB/s
min/avg/max/mdev = 548 us / 651 us / 27.4 ms / 406 us
A bit disappointed that it is slower (on my RPi) then the cheaper one a few posts back.
This one costed me 11 euros.