The big but:
ALL Since 2012 produced Sandisk USB sticks are recognized as hard drive, and not as a removable drive!
In order for the embroidery for my purpose is unfortunately completely useless.
To create a Multiboot USB Flash Drive (grub4dos / RMPrepUSB) to boot order various Windows installations / Isos is not possible.
Too bad!
(Creating a normal USB installation media is still no problem. Only the Multiboot not succeed)
Now I use the Intenso stick which reads itself as a removable drive and not causing problems. This is a little larger and has no LED.
Very bad
For each normal user but to recommendatory Stick when an ultra-small media is searched.
The only 5MB / s write really exceeds this size currently no other manufacturer.