. 30% of QNAP users choose RAID 5 arrays for their NAS to provide higher data protection better system performance and optimized storage utilization. The 3-bay TS-351 not only allows you to build a RAID 5 array on your NAS with the fewest disks but also features M.2 SSD slots and efficient auto-tiered storage that realizes optimal system performance. The TS-351 is also a home entertainment portal for streaming and sharing photos music and videos throughout your home and beyond. Featuring a minimalist design the TS-351 can easily fit your home space as a brilliant digital hub!.