PHANTOMfuse was designed to provide high transfer rates. However the resulting download speed is dependent on many factors, such as your system performance or the choice of external hard drives and interfaces. Therefore we cannot give any reliable information about resulting transfer rates. However maximum download speed is limited by the CineMag®, CineStation® IV and 10GbE itself.
On high performance workstations we have had transfer speeds of over 1GB/s. Usually you will get around 900 MB/s.