Amazon.com: MaxDigitalData 6TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5inch Internal Hard Drive for NAS Network Storage (MD6000GSA12872NAS) - 3 Years Warranty : Electronics
Western Digital 6TB WD Red NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, SMR, 256MB Cache, 3.5" - WD60EFAX: Internal Hard Drives: Amazon.com.au