You can now pick up the 16TB Western Digital My Book Duo Hard Drive for $ 499.99 at the Best Buy eBay Store for savings of $ 100. While it is currently out of stock on Amazon, the price will also be adjusted there. This offer is only for one day and is also available on the Best Buy website. It has an enormous storage capacity and can be increased up to 20 TB. It is RAID 0 capable and has two WD Red drives optimized for NAS and RAID situations. There are two USB 3.0 hub ports to which you can connect accessories such as card readers, keyboards, mice, extra memory and more. 256-bit AES hardware encryption and password protection ensure the security of your data as well as automatic and system backup functions.