WD 6TB Black 7200 rpm SATA III 3.5" Internal WDBSLA0060HNC-WRSN
Seagate Exos 7E10 3.5" 6TB 7200 RPM SATA III HDD (ST6000NM019B) - Bleepbox
SP-316A-R6 – Netapp 6TB 7200 RPM SAS 3.5″ HDD for DS4246 24 bay enclosure, DS212C 12 bay enclosure and FAS2220, 2240, 2554, 2620, 2720A series. – Disk Drive Finder
Toshiba MG08-D 3.5" 6TB 7200 RPM SATA III HDD (MG08ADA600E) - Bleepbox