The Western Digital WD Purple Pro 12TB 3.5" SATA III 7200RPM WD121PURP is a high-capacity internal desktop drive designed for use in WD Purple Pro series storage systems. With a storage capacity of 12TB and a rotation speed of 7200 RPM, it offers fast and reliable access to your data. This HDD drive also features streaming capabilities, S.M.A.R.T technology, GPL, NCQ, and APM for enhanced performance and error correction. Its silver color and sleek form factor make it a great addition to any computer or networking setup.