8TB Storage Capacity , 3.5" Form Factor , SATA III 6 Gb/s Interface , 256MB Cache , 7200 rpm

12TB Storage Capacity , 3.5" Form Factor , SATA III 6 Gb/s Interface , 512MB Cache , 7200 rpm

2TB Storage Capacity , 3.5" Form Factor , SATA III 6 Gb/s Interface , 256MB Cache , 5400 rpm , Up to 180 MB/s Sustained Transfer Rate , 1 Million Hours MTBF , 180TB Yearly Workload Rating , Air Sealed

16TB 3.5” , 7,200rpm, Helium-sealed design, Synology Plus Series HDD SATA HDD