Built on a standard 3.5in format, the 10TB IronWolf has a spindle speed of 7,200rpm and 256MB of cache.
The drive uses helium technology and to get to its huge capacity it uses 7 PMR (Perpendicular Magnetic Recording) high capacity discs and has 14 reading heads.
Using helium (which is 1/7th the density of air) allows drive manufacturers to use thinner platters and be able to pack more of them into a drive chassis. This because using helium inside the drive reduces the drag force acting on the spinning disks as well as reducing flow forces acting around both disks and heads.
Usable Capacities: 10TB
Spindle Speed: 7,200rpm
No. of Heads: 14
No. of Platters (discs) 7
Recording Method: Perpendicular
Areal density (Gb/in2 avg): 867
Interface: Serial ATA (SATA) 6Gb/s (SATA III)
Form Factor: 3.5in
Dimensions: 26.11 x 101.85 x 146.99mm
Drive Weight: 650g
Firmware Version SC60