aaron@server:/media/data$ sudo dd if='/media/data/ubuntu-mate-16.04-desktop-armhf-raspberry-pi.img' of=/dev/sdd
10765113+0 records in
10765113+0 records out
5511737856 bytes (5.5 GB, 5.1 GiB) copied, 2351.9 s, 2.3 MB/s