Good idea !
Transfer speed improves a bit with 2 copy jobs (1.8GB/s).
So I did a double copy test using FreeFileSync that can be tuned for multithread (they speak about “parallel operations on files”): I put 5 parallel operations on files for each SSD and I got a peak transfer speed of 4GB/s (about 2.3GB/S average but there were some small files) !!! That’s a lot better !
Multithread is then the answer !
Thanks for inducing the right track: use multithread !
I thinks we can close this community support thread as “Solved”
Eric