A new gadget from Toshiba turns wired external hard drives from single-user backup devices into wireless media streaming boxes the whole family can use simultaneously. External hard drives, unlike a lot of consumer electronic devices, dont get replaced on a regular basis. That also means that while everything else in the home from the TV and games console to the smartphone, tablet and computers, are all wi-fi enabled, using the external hard drive requires running cables and plugging them into USB, Firewire or Thunderbolt ports. Enter Toshibas Canvio adaptor.