Buffalo LinkStation 420 6 TB 2-Drive NAS for Home/Home Office (LS420D0602) High Performance Processor (transfers up to 100 M/bs) Buffalo's free WebAccess to your own Personal Cloud DLNA certified to stream your favorite media Nova BACKUP software included with up to 5 licenses iTunes server compatible Two drive design supports RAID 0/1 3 Year Warranty with 24/7 technical support