This is an SSD drive with a 4 TB storage capacity. The form factor is 2.5" the most common for SSD drives.
From Senetic
Intel SSDSC2KG038T801 internal solid state drive 2.5' 3840 GB Serial ATA III TLC 3D NAND (SSDSC2KG038T801)
Novatech
Intel SSD D3-S4610 Series 3.84TB 2.5" SSD