This was posted last week but the price has dropped again so may be of interest to somebody looking for a nice portable 2.5" hard drive with massive storage potential.
Delivery starts from 98p so you would need to take that into account.
Warranty is 6 months as these drives are 2nd hand.
Only 2 left in stock so be quick.
Here is a video review of the drive in question:http://www.cnet.com/uk/products/seagate-backup-plus-fast-4tb/