Mixed comment on this website
I haven't a USB weriter but it does sweem very slow. Perhaps its only working at USB1 speed. Presume you have it connected to the main USB2 outlets on the PC and not a USB hub.
Surface Pro (2017) vs Surface Pro 4
20 groundbreaking 3D animation technologies coming to Siggraph 2017
iPad Pro 12.9 vs Surface Pro 5
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.