Western Digital My Cloud Diskless Expert Series 4-Bay Network Attached Storage Whether you're a creative hobbyist, creative professional or have an impressive media collection, you will undoubtedly have loads of digital content to store. With My Cloud Expert series NAS, you can easily centralize and protect your valuable content from all the PC and Mac computers on your network. Plus, access it anytime, from anywhere with tablets and smartphones. Powered by a strong Marvell Armada 388 1.6 GHz dual-core processor, My Cloud EX4100 gives you ultra-fast transfer speeds of 116mbps upload and 116mbps download to keep up with your high-performance needs. Now you can upload more content simultaneously, stream your HD media more smoothly and enjoy your creative life with ease. With the built-in Twonky DLNA-certified media server, you can seamlessly stream all your HD videos, photos and music stored on your My Cloud Expert series NAS to media players, Smart TVs, gaming consoles and other DLNA-certified devices on your network or use the Plex media server third-party app to organize your media collections and stream them to all of your screens. My Cloud EX4100 keeps your irreplaceable photos, videos and files safe with multiple data protection options to secure your content from unexpected loss. Protect all the PC and Mac computers on your network using local, remote or cloud backup. Multiple RAID configurations and volume encryption add even more protection and security for all your files. My Cloud EX4100 comes preconfigured to get you set up and on your way without any hassle. The intuitive dashboard guides you through the process of setting up users and shares, customizing system features and monitoring your storage. With a tool-less and tray-less drive bay design, drive installation and hot swap is effortless. My Cloud Expert series pre-configured NAS come populated with WD Red NAS hard drives. Ultra-reliable and purposely built for NAS systems, WD Red drives improve performance and thrive in 24x7 environments. WD's exclusive NASware technology further optimizes WD Red for the NAS environment. From vibration compensation, optimized power usage and protecting your content in the event of a power loss or disruption, the firmware is designed to give you improved reliability and system performance.