Fastest way to copy data to a newly installed Duo v2

[n_lev]

Hi!

Just bought my first NAS ever. Duo v2. Installed the first HDD, everything is formatted and initialised, shares visible over the LAN.
Now... I need to transfer about 1TB of data from my current external HDD to the new NAS. What would be the best (fastest) way to do it? Tried copying using my Mac to which the external HDD is connected via USB. It told me it was going to take around 70 hours and then failed overnight anyway. Are there better and more reliable options?

Thanks in advance for you help...

[mbrink90]

Fastest way would be to connect the USB drive to front USB port.

The go into configure and create a new backup job:
Source: Usb (front port)

Destination: <share>

Then run the job.

[n_lev]

Thanks, I'll try that