NAND Flash is a type of non-volatile memory that retains data even when the power is turned off. It is widely used in devices like USB drives, memory cards, and solid-state drives (SSDs) due to its ability to store large amounts of data in a compact form. Unlike traditional hard drives, NAND Flash has no moving parts, which makes it faster and more durable. The technology behind NAND Flash involves storing data in memory cells made from floating-gate transistors. These cells can be grouped together in blocks, allowing for efficient data management and retrieval. As a result, NAND Flash is essential for modern computing and mobile devices, providing quick access to information.