This is a mechanical HDD drive with a 4 TB storage capacity. The rotation speed 7 200 rpm.
From Amazon
LaCie 1big Dock, 4TB, External Hard Drive, HDD Docking Station, Thunderbolt 3, 7.200 RPM, Enterprise Class Drives, for Mac and PC Desktop, 5 year Rescue Services (STHS4000800)
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LaCie 4TB 1big Dock Thunderbolt 3
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