High storage capacity. Good performance (with a USB adapter 3).

Note that I have bought this card in April 2015, the format "unpack Frustration-Free" on Amazon (Amazon seller). The comments are therefore attached to this product (beware of cons-ways may designate the same product)

Write: 13.1 MB / s, Reading 31.6 MB / s

H2testw tested with v1.4 on a laptop with an adapter / player transcend usb3 (whose performance is often much better than the built-in SD slot laptop), I get 13.1 MB / s write speed for writing total map.
At the start of the test, in 10 minutes, a 8.15 GB file has been written on this card, and a 12.2 GB file in 15 minutes - not bad -.
This gives an average writing 47 GB / hour, linear enough (16 GB are written in just under 20 minutes)
It will take a little less than 2:35 to fill the 128 GB card (writing rate 13.1 MB / s).

The write speed varies relatively little, 13.6 MB / s at the beginning (hot card) and it falls to 12.7 MB / s at the end.

Reading the files on the card, is about 31.6 MB / s (hot map), it should be slightly higher if the card is cold.
Reading 10GB takes 5 minutes and 20s).
Reading 128GB card is in 64 minutes.