Tonido Plug

TonidoPlug is a tiny personal server that lets you access your images, photos and personal files wherever you are, without having to hand them over to someone else to look after. Not only is there software to mount it as a local drive — a-la dropbox — but it serves as a NAS device on your home network too. With the option to plug in USB drives, or add an internal SATA HDD, you won’t need to pay a subscription, either.