QNAP Pro 6-Bay Desktop Network Attached Server TS-659 Intel Atom D510 1.66GHz Dual-Core processor and 1GB DDRII RAM 6-bay hot swappable, 2.5" or 3.5" HDD supported The unique "Virtual Disk Drive" adds flexibility to expand the capacity of NAS. RAID 0, 1, 5, 5+spare, 6, 6+spare, single, and JBOD disk configurations file sharing across Windows, Mac, Linux, and UNIX platforms