You can't write large files on it, e.g. 7 GB; it is very expensive for its capacity and it doesn't have a little clip to hang it on, e.g. on your keys. However, it is relatively fast.

I got it for the MacBook and to have it on the PC as well, fast and very well built, it doesn't get particularly hot. It's perfect for its price.

It reaches the reading speed it claims (120mb/s) but the writing speed is at 14-20mb/s, which is very slow... (Older sticks have 25-35 mb/s). Nevertheless, I consider it fair for its price at 14 euros (for 64gb).

Good price, good construction, good speeds and very useful to have two different ports.

The transfer speeds are as follows:

From the stick to the mobile:
- Photo files: 80mb/sec (13 seconds for 1GB)
- Video files: 120mb/sec (8 seconds for 1GB)

From the mobile to the stick:
- Photo files: 30mb/sec (33 seconds for 1GB)
- Video files: 36mb/sec (28 seconds for 1GB)

Notes:

1) The above speeds refer to the 64GB version. The 256GB version has even faster read speeds (200MB/sec instead of 120MB/sec for video files).

2) Do not try to delete the empty folders that are automatically created on the stick when you connect it to your mobile. If you delete them, these empty folders (android, pictures, documents, movies, notifications, download, etc.) will be created again for the stick to work with the mobile. I have not experimented with formatting the stick on the computer to see if the folders will be created automatically again when connected to the mobile.