The Samsung PM991a 256GB M.2 2230 NVMe PCIe SSD is a high-performance internal SSD designed for use with laptops and PCs. With a storage capacity of 256GB and a transfer rate of 550 Mbps, it offers fast and efficient data storage and retrieval. The drive is in the M.2 form factor, featuring a low noise level and utilizing NVMe interface technology. Made by Samsung in Korea, this SSD is a reliable choice for those looking to enhance their computer's storage capabilities.