This Western Digital 5TB External Desktop Hard Drive drops from $199.99 to $139.99 to the net price of $129.99 after using this $10 Mail-In Rebate at Tiger Direct. Shipping starts at $4. After the rebate, this becomes the lowest price we could find for this hard drive by $10. It's USB 3.0 compatible, works with Macs and PCs and comes with a free trial of WD SmartWare Pro backup software for local and cloud backup. Sales tax is not charged in most states.