HGST Ultrastar HUS723030ALS640 3TB 7200RPM SAS 6Gbps 3.5" 64MB Cache Enterprise Internal Bare or OEM Hard Disk Drives

Crucial BX500 4TB 3D NAND SATA 2.5-Inch Internal SSD, up to 540MB/s - CT4000BX500SSD1, Solid State Drive

Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004)

SAMSUNG 870 EVO 4TB 2.5 Inch SATA III Internal SSD (MZ-77E4T0B/AM) , Black

Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5" - WD40EFRX