Seagate IronWolf ST2000VN004, 2 TB, 5900 RPM, 64 MB, 3.5", Serial ATA III Seagate IronWolf ST2000VN004. HDD capacity: 2 TB, HDD speed: 5900 RPM, Storage drive buffer size: 64 MB, HDD size: 3.5", Interface: Serial ATA III