Amazon.com: Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 : Electronics
Toshiba 3.5 4TB Enterprise Class Hard Drive Disk 6Gb/s Computer Monitor Sata 3 Internal HDD Hard Disk Drive 7200RPM 128M Drevo|External Hard Drives| - AliExpress
Dell KRH17 Hard Drive 4Tb 7.2K SATA 3.5" in Tray
Seagate 4tb Desktop Hdd Internal Hard Disk Drive 5900 Rpm Sata 6gb/s 256mb Cache 3.5inch Hdd Drive Disk For Computer St4000dm004 - Hard Disk Drive - AliExpress
Dell 4TB 3.5in SAS Hard Drive ST4000NM0023
Synology 4TB HAT5300 SATA III 3.5" Internal Enterprise
LOT OF 5* DELL/SEAGATE 4TB 7.2K 3.5" SAS ST4000NM0023 DP/N 0529FG | eBay