SimpleTech 120GB USB/FIREWIRE EXT HD DRIVE (STI-U2F36/120) Connect up to 127 USB 1.1 &amp; 2.0 devices to the hard drive, through USB hubs - or up to 62 FireWire devices No tools required for installation -- just one-step, plug and play Run backups automatically with StorageSync Stands vertically or sits horizontally Hot swappable