Probably best if your are in the U.S of A.
1 @ $4 - mobile (blue)
http://www.ebay.co.uk/itm/Pogoplug-Pogo-Personal-Cloud-Backup-Access-Share-From-Anywhere-/272242225879?hash=item3f62e6b2d7:g:0soAAOSwI-BWOSqn
2 @ $6 - mobile (blue)
http://www.ebay.co.uk/itm/Lot-Of-2-Pogoplug-Pogo-Personal-Cloud-Backup-Access-Share-From-Anywhere-/282005264700?hash=item41a8d2d93c:g:FzAAAOSwwbdWOUlx
1 @ $8 - Pro Biz
http://www.ebay.co.uk/itm/Pogoplug-POGO-BIZ02-US-Biz-Media-Sharing-Device-USB-2-0-/391312813238?hash=item5b1c0facb6:g:jwMAAOSwoudW-73v
1 @ $4 - mobile (blue)
http://www.ebay.co.uk/itm/Pogoplug-Pogo-Personal-Cloud-Backup-Access-Share-From-Anywhere-/272242225879?hash=item3f62e6b2d7:g:0soAAOSwI-BWOSqn
2 @ $6 - mobile (blue)
http://www.ebay.co.uk/itm/Lot-Of-2-Pogoplug-Pogo-Personal-Cloud-Backup-Access-Share-From-Anywhere-/282005264700?hash=item41a8d2d93c:g:FzAAAOSwwbdWOUlx
1 @ $8 - Pro Biz
http://www.ebay.co.uk/itm/Pogoplug-POGO-BIZ02-US-Biz-Media-Sharing-Device-USB-2-0-/391312813238?hash=item5b1c0facb6:g:jwMAAOSwoudW-73v