Seagate NAS HDD IronWolf 4TB 4000GB Serial ATA III hard disk - InSync Micro
WD Elements Portable WDBU6Y0040BBK 2.5 SATA 4,000 GB - Hdd - 5,400 rp, € 89,40
SEAGATE Enterprise ST4000NM005A internal hard drive 3.5" 4000 GB SAS | Dodax.com
Seagate ST4000DM000 Desktop Hdd 4TB Sata 6GB/s Ncq 64MB Cache 3.5in Internal Bare Drive (Renewed) : Electronics
HGST Desktop 4TB Hard Drive Disk 4000GB 4000G HDD Internal HD 3.5" 7200RPM 64M SATA3 HDS724040ALE640 for PC Computer NAS DVR|desktop promotion|desktop stereodesktop world time clock - AliExpress
N9X94A: HPE 3.2TB 12G SAS 3.5 inch 4000 GB Hard Disk Drive (HDD) | Vertical Enterprise Equipment