Migrating Data to New EX4100

I recently acquired a WD EX4100 after having a WD My Cloud for a couple of months.
What would be the fastest way to transfer data from the MyCloud to the EX4100? I tried rsync in SSH, but transfer speeds were very bad 1MB/sec and less.
The devices is on a Gigabit network.

Hello, If SSH is unable providing a slow transfer, you could transfer the information to a USB drive. You could also try to create a safepoint to the EX 4100 and then sorting the information around.