NETGEAR ReadyNAS 3130 1U Rackmount 4-Bay Diskless NAS (RN3130-100NES) High Performance Intel Atom C2338 1.7GHz Dual Core processor & Quad Gigabit Ethernet ports Performance meets needs for virtualization, backup, and file server solutions Complete file protection with 5 levels of security for all your photos & files Time Machine backup support for all the MACs in your home Anywhere cloud access and sharing from computers and mobile devices Disk spin down for energy savings Easy drive installation and hot swap Expandable capacity up to 24TB raw capacity (using compatible 6TB drives)