Seagate ST4000NM0023 Constellation ES.3 4TB 3.5" 7200RPM 128MB Cache SAS 6Gb/s Enterprise Class HDD Hard Disk Drive 9ZM270-037. The Seagate ST4000NM0023 is a high-capacity, high speed drive that will handle all of your storage needs. With a 4TB capacity accessed by a 6.0GB/s SAS interface coupled with a 128MB cache and an 8.5ms random read seek time, this drive is perfect for anything from network attached storage (NAS) systems to audio/visual systems to enterprise back up.
Storage Capacity: 4000 GB
Rotation Speed: 7200 RPM
Storage Interface: SAS 6.0 Gb/s
Cache: 128 MB
Form Factor: 3.5"
Type: Hard Disk Drive
Features: Sixth-generation drive technology with SAS and SATA interfaces for 24 x 7 reliability; Enhanced error correction, super parity and end-to-end SAS-based data integrity for accurate data storage; Best-in-class rotational vibration tolerance ensures consistent performance; Improved power and cooling efficiencies with low power consumption and on-demand PowerChoice technology based on T10/T13 power management standards; Multi-drive firmware maximized for enterprise RAID system availability; Robust performance with dual processors, ramp load technology, top-coverattached motor and humidity sensor for optimum performance in all chassis.