Seagate IronWolf 4TB Internal SATA NAS Hard Drive with Rescue Data Recovery Services ST4000VNA08 - Best Buy
Amazon.com: Seagate IronWolf Pro 4TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 128MB Cache for RAID Network Attached Storage, Data Recovery Service – Frustration Free Packaging (ST4000NEZ01) : Electronics
Seagate IronWolf Pro 4 TB 3.5" HDD SATA III (ST4000NE001)