Wanted: Service Need transfer 500gb small files using vrangesync across the wire

[neonm]

Need transfer 500gb small files using vrangesync https://www.1range1.com
I have pay for commercial license of the filecopier and need to move around 1million small imagew files from debian OS to another newer debian server.
It need to transfer using the 'ncat' feature offer by the vrangesync or better. My concern is it need to fast and complete within a day.