The stick copied loud Total Commander with 18.4 MB / S files quite fast. A 32GB flash drive from the Kaufland with OTG and USB Micro managed for almost 15 only around 4 MB / s and is often so great. I'm very satisfied. I bought the 64GB variant. The middle section is not intended to displace but only for holding. Each port has a gray cover to move. On the picture you can see the two sides. The plastic cover is only pushed inward or outward. Unfortunately, this is a tick too easily as the well after a certain time of use, the cover is no longer holding. But for a mini OTG USB2 Stick I forgive because 4+ star. A star goes for the measly plastic covers away.
Edit: The stick is formatted in exFAT. My Lenovo Yoga Tablet 2 can neither exFAT still NTFS (without root). Windows 7/8 / 8.1 offers formatting for this drive only exFAT or NTFS. So you need to reformat to FAT32 an external program. With Paragon or EaseUS that's no problem. If you want to use an external program to format then you open as administrator (Run as Adminis ...) the command prompt (cmd.exe) and is "C: \> format DL: / FS: FAT32 / q". LW: is the drive letter of the sticks. NOTE: This does not make mistakes otherwise go data flutes. Do not know what you're doing you should seek help.