The 1H4168-505 Seagate NAS HDD is a high-capacity, reliable internal hard drive specifically designed for Network Attached Storage (NAS) systems. This refurbished 4TB drive operates at a rotational speed of 5900 RPM, ensuring efficient data access and transfer speeds. With a SATA 6Gbps interface, it supports high-speed connectivity, making it suitable for data-intensive applications. The 64MB cache enhances overall performance by optimizing data retrieval times and improving system responsiveness. The 3.5-inch form factor allows for easy installation in standard NAS enclosures and other compatible systems. Ideal for home or small business NAS setups, this drive offers robust performance and dependable storage, making it a cost-effective solution for expanding your network storage capacity.