The 8TB (2x4TB) 2-Bay RAID Kit from B&H combines a Buffalo LS421DE 2-Bay LinkStation NAS Enclosure with two 4TB hard drives to provide a complete 8TB shared storage and cloud solution. Store and back-up files from multiple computers, stream content, or access content remotely from your private cloud. Use the Twonky Beam app to connect with DLNA-supported devices to search and play movies stored on the NAS. Downloading the WebAccess app makes it easy to transfer, save, and access files over a mobile network. The LS421DE works as a remote external HDD that can be accessed from anywhere. You can automatically transfer pictures or videos from your smart phone or tablet for sorting, sharing or deleting later, freeing up precious memory on your mobile device.