The Seagate ST4000VN000 is a 4TB 3.5-inch NAS hard drive designed for reliable, 24/7 operation in small to medium-sized NAS environments. With a spindle speed of 5900 RPM and a 64MB cache, it delivers a maximum sustained data transfer rate of 180MB/s . The drive features a SATA 6Gb/s interface for seamless integration with modern NAS systems. Designed to support up to 5-bay NAS configurations, the ST4000VN000 incorporates Seagate’s NASWorks technology, providing optimized error recovery controls, power management, and vibration tolerance for enhanced reliability . With a mean time between failures (MTBF) of 1 million hours and a low average operating power consumption of 4.8W, it is an energy-efficient solution for continuous data access and storage .