IRVINE, Calif., Nov. 12, 2013 /PRNewswire/ -- WD®, a Western Digital (NASDAQ: WDC) company and a world leader in storage solutions for the connected life, today expanded its recently introduced My Cloud ™ family of personal cloud solutions with My Cloud™ EX4, a high-performance four-bay network attached storage (NAS) solution for creative professionals, prosumers, workgroups and anyone looking for a reliable way to save, share, back up, stream and manage massive amounts of digital data. "The reception for our recently introduced My Cloud personal cloud platform was extremely positive," said Jim Welsh, executive vice president and general manager of WD's branded products and consumer electronics groups. "Our single drive My Cloud system is the perfect solution for users that want an easy and private way to store all of their data at home and then share, save and manage it from anywhere in the world, on any device. Expanding our My Cloud platform to a four-bay system delivers the advanced features, customization capability and capacity that many of our customers are looking for." Featuring the category leading WD Red™ line of hard drives specifically designed for home and small office NAS systems, My Cloud EX4 customers enjoy ultimate reliability from the trusted name in storage. WD Red drives are powered by NASware™ 2.0 technology, which improves drive reliability and protects customer data in the event of a power loss or disruption. Additionally, WD Red hard drives feature 3D Active Balance Plus, an enhanced balance control technology that significantly improves overall drive performance and reliability. My Cloud EX4 provides several capacity options, allowing customers to choose from a drive-less enclosure that allows customers to customize their capacity and add additional drives as their library of digital content grows, or an 8 TB, 12 TB or 16 TB model 1. With Easy-Slide-Drive technology, My Cloud EX4 allows customers to easily install or hot-swap drives in seconds, without the need for a screwdriver, toolkit or trays. Additionally, customers can attach compatible USB 3.0 hard drives to the USB expansion ports on the My Cloud EX4 to instantly expand their storage capacity. Ultimate Data Protection My Cloud EX4 arms users with multiple options to secure digital data from a potential loss by providing RAID 0, 1, 5, 10 or allowing users to select from spanning and JBOD modes for even more options to manage data. Customers can also use their My Cloud EX4 to back up all of their computers and devices with WD SmartWare™ Pro software for PC users. Mac users can utilize all the features of Apple® Time Machine® backup software to protect their data. The My Cloud EX4 can also backup itself, either to another My Cloud EX4 in a different location, or to cloud services such as Amazon S3 and ElephantDrive. To ensure 24/7 data protection and reliability the My Cloud EX4 includes redundant power supplies and Ethernet ports.