Quality OK. The speed is normal, for writing about 15 MB / s through port 3.0. As an ordinary flash drive, it performs functions, but about the android - out of 4 devices it picked up only on one (Sonka on the 6th Android). I didn’t go to Samsung (8.0) and Lenovo (7.0) (although on both USB-C connectors, with an adapter). The old Chinese (4.4) also did not go. The Sandisk website does have a list of devices with which work has been verified - so look before buying so as not to be disappointed.
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