M.2 SSDs are high-performance storage devices that use advanced NAND flash technology to deliver fast data transfer speeds, improved reliability, and energy efficiency. Unlike traditional 2.5-inch SSDs, M.2 SSDs are compact and designed to be directly mounted onto the motherboard, saving space and reducing clutter inside the computer case. 

They are ideal for ultrabooks, gaming PCs, and any system requiring a fast, responsive storage solution. With capacities ranging from 128GB to several terabytes, M.2 SSDs are perfect for boot drives, running applications, or storing large files, significantly enhancing overall system performance.