WD My Cloud EX4 12 TB: Pre-configured Network Attached Storage featuring WD Red Drives Reliable, high-performance, four-bay NAS for your home or small office Diskless enclosure for ultimate flexibility or a populated system that works out of the box User-selectable drive management with RAID 0, 1, 5, 10 as well as spanning and JBOD modes Get up and running quickly with easy drive installation or buy a populated version that works right out of the box Easy to manage with a powerful dashboard, LCD display and drive status alerts Award-winning desktop and mobile apps Industry-leading third-party apps, including aMule and Icecast Advanced serving options including an integrated file server