You cannot connect two PCs through USB with an ordinary cable. There are USB cables with special circuitry that can be used. 4GB flash drives are now pretty cheap otherwise you can use an enclosure for yor old harddrive and connect via USB.
Surface Pro (2017) vs Surface Pro 4
20 groundbreaking 3D animation techniques
How to mine Bitcoin on Mac
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.