Save all your valuable photos, videos, music and files on this ready-to-go, high-performance NAS solution for secure access to them anytime, from anywhere. Protect your content with multiple backup options, customize your NAS with a full suite of apps and enjoy peace of mind knowing that we've put our best in it, so you can put your best on it.



Centralize your media and content in one safe, organized place



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.



Get power that keeps up with your passion



Powered by a strong Marvell® ARMADA® 388 1.6 GHz dual-core processor, My Cloud EX4100 gives you ultra-fast transfer speeds of 116 MB/s upload and 116 MB/s 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.



Stream like a pro



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. It's an easy way to enjoy your media collection on the biggest screen in your house.



Safeguard your content with comprehensive data protection



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.



Be up and running in minutes



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. And with a toolless and trayless drive bay design, drive installation and hot swap is effortless.



Built-in reliability for added peace of mind



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.



Get enhanced media streaming and network redundancy



Dual Gigabit Ethernet ports for link aggregation enhances network performance giving you the best possible HD media streaming experience. It also provides for network redundancy should one of your network connections fail.



A power supply with a backup plan



My Cloud EX4100 comes equipped with dual power ports offering you the option of adding a second external power supply that will take over should the first power supply fail, giving you uninterrupted access to your content.



My Cloud OS - content management made simple



WD's My Cloud OS delivers a suite of tools and apps that empower you to easily take control of the content that matters to you most. The intuitive, easy-to-use dashboard makes set up, managing storage and personalizing your NAS effortless. Our award-winning My Cloud app allows you to securely access and share your files from anywhere with computers, tablets and smartphones. And with popular third-party apps available for download, you are enabled to customize your NAS to best fit your needs. Learn more



Automatically copy your external USB with the touch of a button



With the built-in, one-touch copy button conveniently located on the front of the NAS, you can automatically copy all the photos, videos and music you have stored on an external USB or camera to the My Cloud EX4100, keeping all your media and files in one safe, central location.



Save on energy automatically



My Cloud EX4100 comes equipped with drive sleep mode, LCD and LED on/off and power scheduling capabilities to save power and runtime energy.



Professional-grade features



- iSCSI target and initiator

- Integrated FTP and WebDAV server

- Integrated SSH Secure Shell

- Link aggregation and network redundancy

- Dual power ports for failover support

- Jumbo frame support

- IPv4 and IPv6

- UPS support (USB and network)

- Real-time resource monitor

- SNMP

- Microsoft Active Directory support

- Energy-saving options