First impressions very good, Class 10 speed promises officially min. 10 MB / s! Following performance testing with CrystalDiskMark sequential read I get the good 22 MB / s and write almost 11 MB / s. With 512k blocks also are almost 19 MB / s achieved when reading but writing breaks the speed to almost 1 MB / s! Nevertheless, acceptable performance for the price. For this 10-year warranty from Lexar.
On the other hand disappointed When unpacking the included USB adapter. Absolutely cheap plastic that already includes first cracks, feels very unstable and does not make a solid impression. Let's see if the adapter the promised warranty of 1 year survived.
Have bought the card for a Sansa Clip + (8 GB) player and sparks. outstanding.
The shipment of Amazon, as always, very fast and the price is very good!