Bestbuy offers WD - My Cloud Expert EX2 Ultra 2-Bay 8TB External Network Attached Storage (NAS) - Charcoal for $329.99 (orig. $449.99) with free shipping.

Product Description:
Keep valuable data safe with this My Cloud EX2 Ultra external hard drive. Custom backup options through WD SmartWare Pro, 256 AES volume encryption, and multiple RAID options provide enhanced performance and protection. This 8TB My Cloud EX2 Ultra provides high transfer speeds, and its Plex Media Server keeps your data ready at all times. 

• 8TB storage capacity
  Provides ample space for your music, movies and other files. Featuring ultra-reliable WD Red™ NAS drives.
• Gigabit Ethernet interface
  Lets you store data to a personal Cloud.
• Multiple RAID options
  Provide the ability to create RAID 0, RAID 1 or a JBOD / spanning structure for non-RAID configurations.
• Custom backup at any time
  Safe your data with WD SmartWare Pro backup software or Apple Time Machine.
• 256 AES volume encryption
  Provides securely store files across your entire network.
• Upgraded for high-performance
  Dual-core Marvell ARMADA 385 1.3GHz processor and 1GB of DDR3 memory helps to get ultra-fast transfer rates for high performance streaming.
• Simple to install, easy to manage
  With a tray-less bay design, installation is effortless and tool-free.
• Compatible with Mac and PC
  For flexible installation options.