It must be formatted as NTFS the key first
I took a 8872 MB file
On an HP notebook PC with I3 Processor
The transfer time was 526 seconds
Either a real write rate of 16.86 MB / Second
On a PC with I7 Processor
The transfer time was 400 seconds
Either a real write rate of 22.18 MB / Second
Read 277 seconds
Either a read transfer rate 32MB / Second
Your turn to judge!
I have another key that had 16GB times 3 times higher, so I'm delighted ...