Seagate 6TB Video Surveillance HDD Internal Hard Disk Drive 7200 RPM SATA 6Gb/s 3.5-inch 256MB Cache ST6000VX0023

Features:
Perfect for surveillance DVR, NVR, and SDVR.
Support each system up to 8 drives(4TB is above 8 drives) and each drive supports 64 cameras.
7*24 work mode and mean time between failure(MTBF) with 1 million hours.
Specialize design for a workload of 180TB per year which is 3 times the support of a desktop drive.
Minimize the consumption of heat and vibration, thus improve the long-term reliability of hard disk.
Precision-tuned for high write surveillance workloads.
Surveillance optimization specialized HDD, accurate calibration can realize all-weather operation, high in surveillance work load.