Internal desktop 3.5 inch 5400 RPM, SATA III, 64 MB cache with WD high performance, SATA 6 Gb / s interface, 24 x 7 reliability, surveillance hard disk drive, optimized to support up to 32 high definition surveillance cameras.
Disk Technology HDD
RPM 5400 RPM
Data Buffer 64 MB
Connectivity SATA 6.0 Gb/s
This product western digital wd40ejrx hard disk comes with 2 years warranty.