Toshiba 16TB N300 Internal Hard Drive – NAS 3.5 Inch SATA HDD Supports Up to 8 Drive Bays Designed for 24/7 NAS Systems, New Generation (HDWG31GUZSVA) : Amazon.co.uk: Computers & Accessories
WD 16TB Red Pro 7200rpm HDD 512MB Cache Internal NAS Hard Drive (WD161KFGX) | OcUK
Seagate Exos X18 ST16000NM000J - Hard drive - 16 TB - internal - SATA 6Gb/s - 7200 rpm - buffer: 256 MB - Hunt Office UK
41DXR Dell 16TB 7.2k SAS 3.5" 12Gbps 512e Hard Drive