Seagate's IronWolf Pro 14TB is built on a standard 3.5in format but with a thickness of 26.11mm. The drive has a spindle speed of 7,200rpm and 256MB of cache.
The drive uses Helium technology which enables Seagate to cram eight 1.75TB (areal density of 1058 GB/in2 ) PMR (Perpendicular Magnetic Recording) and 16 reading heads into the drive.
The two angled silver units at the ends of the PCB are the rotational Vibration (RV) sensors that protect the drive against any damage caused by the vibration that is set up in the larger multi-bay NAS enclosures.