Clickfree Automatic Backup 120 GB USB 2.0 Portable External Hard Drive HD700 (Black) 120GB of storage space and can backup over 350 different file types. Multiple PC backup - all on one device. Automatic Backup can backup up to 5 computers. Each PC can have individual backup options and each computer's data is presented separately. Clickfree Automatic backup includes customizable options, giving users full control over their backup.