The fastest ReadyNAS to date, and it blows away the competition by at least a factor of two. A follow-on to the successful and award-winning ReadyNAS NV+, the Pro Business Edition is definitely the smart choice for the small and medium-size businesses looking for reliable network storage. 5200, 6-bay, Buffalo, DS-408, DS-508, Infrant, NAS, Netgear, network, Pro, QNAP, RAID, ReadyNAS, storage, Synology, Thecus, TS-409, TS-509, X-RAID, X-RAID2