Don't just store your files, share and access them from virtually anywhere with the 12TB My Cloud Mirror (Gen 2) External Hard Drive from Western Digital. This network attached storage features Gigabit Ethernet connectivity and comes with two drive bays set to RAID 1 or Mirror Mode. This preconfigured setting ensures that your data will be mirrored from one drive to the other to help prevent data loss should one of the drives fail. To manage your data, Western Digital has outfitted this NAS with a 1.3 GHz dual-core processor along with 512MB of memory. There are also two USB 3.0 ports for expanding the My Cloud Mirror's storage capacity and backing up the data to optional storage drives.