980Pro SSD1TB 2TB 4TB SSD PCIe 4.0 M.2 2280 NVME free delivery"Hard disks are vital storage devices in computer systems. Their function is to store data for a long time and access data quickly. Modern hard disks usually use magnetic storage technology to store and retrieve data through disk rotation and head reading and writing. Hard disks are widely used in personal computers, servers, data centers and other occasions, providing users with efficient and stable data storage solutions.An excellent hard disk has three major characteristics: high capacity, high-speed transmission and reliability. First, high capacity means that a large amount of data can be stored to meet the growing storage needs of modern users. Second, high-speed transmission ensures fast reading and writing of data, improving system operation efficiency and user experience. Modern hard disks usually support high-speed interfaces such as SATA, SAS and NVMe, as well as high-speed transmission protocols such as USB 3.0/3.1 and Thunderbolt, to ensure optimal performance during data transmission."