Staples offers the Seagate FreeAgent GoFlex Desk 3TB USB 3.0 External Desktop Hard Drive, model no. STAC3000101, for $109.99 with free shipping ($0.04/GB). That’s $40 under June mention and the lowest total price we could find by $70. It’s also tied with a September deal for the best price we’ve seen for any 3TB USB 3.0 external hard drive. Sales tax is added where applicable. It features a 64MB cache and 7200 rpm spindle speed.