WD My Cloud Home Duo 4TB (2x 2TB) NAS 1.4GHz Dual-Core 1GB RAM - 1x Gigabit Ethernet Port - 2x USB 3.0 Type-A Ports - 1GB of DDR3L RAM - iOS 9+ and Android 4.4+ Mobile access - Wirelessly Back Up and Sync Content - Windows and Mac Compatible - WDBMUT0040JWT-SESN - 3 Years Limited Warranty My Cloud Home Duo 4TB Dual-Drive Personal Cloud Storage (NAS),RAID1,Media Server,File Sync,PC/Mac Backup - White