Built from the ground up with the quality and reliability you've come to expect from WD, My Cloud EX4 is a high-performance, 4-bay NAS for your home or small office. It offers a robust all-metal enclosure, multiple RAID volumes, easy drive

Built from the ground up with the quality and reliability you've come to expect from WD, My Cloud EX4 is a high-performance, 4-bay NAS for your home or small office. It offers a robust all-metal enclosure, multiple RAID volumes, easy drive installation and a full suite of apps for the power and flexibility to expand your NAS features.

The My Cloud EX4 Product Update has been available since May 27th, 2014. The Firmware release 1.03.39 contains:

• Updated network connectivity reliability and large file transfer capability
• Support for faster creation of the Storage Array and updated Dashboard experience

My Cloud EX4 works right out of the box with integrated WD Red hard drives for ultimate compatibility in the 24x7 NAS operating environment. Pre-set in RAID 5 mode for ultimate protection for your data from the start.

Effortlessly install drives or hot swap within 5 seconds with WD's advanced, all-metal enclosure design. WD's powerful dashboard means you are always in control.

You're armed with multiple options to secure your data from loss. Choose RAID 1, 5, 10 or select from spanning and JBOD modes for even more options to manage your data.

• 4-bay enclosure, 0-16TB
• Dual Gigabit Ethernet
• Dual USB 3.0 expansion ports
• 2.0 GHz processor
• 512 MB of system memory
• PC/Mac compatible
• RAID 0, 1, 5, 10; JBOD, spanning
• Easy drive install and hot swap
• Twonky 7.2 DLNA 1.5 and UPnP certified media server
• Anywhere access from computers, tablets and smartphones with My Cloud desktop and mobile apps
• A full suite of third-party apps
• iTunes support
• Dual power and network redundancy
• Optimised for WD Red drives with WD's NASware technology

• Centralising and organising your data in a secure location
• Securing your data from loss with customisable disk management and multiple RAID options
• Backing up files automatically from all the PC and Mac computers on your network
• Streaming all your media files on your network
• Quickly installing drives with ease
• Saving, backing up and sharing your stored content from anywhere
• Accessing and saving files securely from any computer, tablet and smartphone
• Uploading photos and videos directly to your personal cloud to free up space on your mobile devices
• Transferring files between your public cloud accounts and My Cloud EX4

• Windows 8.1 or earlier, Windows 7, Windows Vista or Windows XP (SP 3) operating systems
• Mac OS X Mavericks, Mountain Lion, Lion or Snow Leopard operating systems
• DLNA/UPnP devices for streaming
• Internet connection for remote access

• Internet Explorer 8 or higher
• Safari 6 or higher
• Firefox 21 or higher
• Google Chrome 27 or higher on supported Windows and Mac OS platforms