Seagate ST4000VN006 4TB 3.5″ NAS Sata HDD, 6Gb/s, 64Mb Cache

Seagate ST4000VN006 4TB 3.5" NAS Sata HDD, 6Gb/s, 64Mb Cache
High-performance 4TB SATA NAS hard drive
Up to 7,200 RPM spin speed
sustained data rates up to 180 MB/s and burst speeds of 6 Gb/s
IronWolf Health Management
Supports workloads up to 180 TB per year

optional data recovery services for added protection