Hitachi Touro Desk 4 TB USB 3.0 desktop external hard drive 0S03396 Black Touro Desk external drive provides solid add-on storage for all your photos, movies, music and documents. Stackable, with plug and play simplicity, Touro Desk comes with all the quality and reliability you expect from Hitachi. Hitachi Global Storage Technologies (Hitachi GST) develops advanced hard disk drives, enterprise-class solid state drives, and innovative external storage solutions and services to store, preserve and manage the world?s most valued data.