Data Storage 4TB Enterprise Capacity HDD 7200RPM SATA 6Gbps 128 MB Cache Internal Bare Drive (ST4000NM0033)

Capacity Optimized Enterprise Hard Drive for Bulk Data Applications
Blazingly fast random and sequential read/write performance
12GB/s SAS and SATA 6Gb/s interface options for replicated and Raid storage
Best in class rotational vibration tolerance ensures consistent performance
Improved power and cooling efficiencies with low power consumption and on demand Power Choice technology
Up to 8TB capacity
Capacity optimized products shipped between December 31, 2011 and June 30, 2012, have a 3 year limited warranty; Capacity optimized products shipped before December 31, 2011 or after June 30, 2012 have a 5 year limited warranty