The Iomega Stor Center™ px 4-300d Network Storage, Server Class Series are true business class desktop devices, ideal for small-to medium-sized businesses & distributed enterprise locations like branch & remote offices, for content sharing & data protection. Powered by EMC storage technology & with up to 12TB of storage capacity, including a diskless option, the Stor Center devices are better, faster & more reliable for your mission critical data. Key Features Desktop form factor Intel Atom Dual Core CPU at 1.8 G Hz with 2GB RAM 4 x 3.5” Hot swap SATA-II Server Class SATA hard disk drives RAID Levels: RAID 0, 1, 10, 5, & 5+1 (hot spare) 1 x USB (Universal Serial Bus) 3.0 & 2 x USB (Universal Serial Bus) 2.0 ports