This high performance NAS (Network Attached Storage) allows you to have media safely in one place and access them from anywhere. With My Cloud EX2 Ultra allows you to automatically synchronize your computers can share files and folders, and use multiple backup options. Seamlessly and you create your own customized system. Interface Gigabit Ethernet 1 ? power supply (DC. Input) 2 x rear expansion port USB 3.0 CPU 1,3GHz dual-core processor Marvell ARMADA? 385 Memory DDR3, 1 GB, Positions for drives 2 slots for 3.5 “hard drives, swappable, without compartments Internal hard drives Solid WD Red NAS drives 2 x 8 TB (16TB) expansion ports 2 USB 3.0 ports System Requirements Operating system Windows 10, Windows 8 or Windows 7 Mac OS X El Capitan, Yosemite, Mavericks, Mountain Lion or Lion Device streaming DLNA/UPnP Router with Internet access Supported web browsers Internet Explorer 10 or later Safari 6 or later Firefox 30 or later Google Chrome 31 or later on supported Windows and Mac OS disk Management RAID: JBOD, Spanning, Field 0/1 RAID migration JBOD to a RAID 1 Swapping Move disks Moving fields Security Volume encryption (256-bit AES) file system EXT4 internal hard disk Supports the following formats for externally attached USB drives FAT/FAT32 NTFS (read and write functions) HFS + J (case-sensitive) Linux EXT2, EXT3, EXT4 The implementation of ISO image Remote Access My Cloud Mobile Applications Access to the site My Cloud.com power Input voltage: 100 V to 240 V AC. Input frequency 50 to 60 Hz Output voltage: 12 V DC., Up to 4 A Temperature Working temperature: 0 ? C to 35 ? C (32 ? F to 95 ? F) Storage temperature: -40 ? C to 70 ? C (-40 ? F to 158 ? F) Package contents My Cloud EX2 Ultra Ethernet cable power Quick Installation Guide More on the manufacturer website: https://www.wdc.com/en-us/products/network-attached-storage/my-cloud-expert-series-ex2-ultra.html#!