Optimise the performance of your USB storage device.

a) There are 5 different types of USB ports:

1. USB 2.0: Actual speed up to 40 MB/s
2. USB 3.2 Gen1: Real speed up to 500 MB/s
3. USB 3.2 Gen2 : Actual speed up to 1000 MB/s = 1 GB/s
4. USB 3.2 Gen2x2 : Actual speed up to 2000 MB/s = 2 GB/s
5. USB 4.0: Actual speed up to 4000 MB/s = 4 GB/s

If possible, select a USB port with a performance greater than or equal to that of the storage device.

b) The size of the files has an influence on the writing speed.
For the same amount of data a single file is faster to copy than several small files.
If you can, create an archive of your small files to copy them as a whole to the storage device, this can speed up the transfer.
In addition, Windows is able to open a compressed file in a zip archive without unpacking the whole archive.
Compressing your data also optimises the free space on your storage device, as compressed files take up less space.
For this you can use a utility such as: 7zip, Winzip or others.

c) If you are using an extension cable or a USB HUB, make sure that these accessories are of the same USB version as the computer's USB port.
Example: If you use a USB 2.0 HUB on a computer's USB 3.2 port, the speed will be limited to that of the USB 2.0 HUB, which is 40 MB/s.