The Samsung PM9B1 256GB M.2 2280 PCIe Gen4 x4 NVMe SSD is a high-performance solid-state drive designed for laptops. With a total capacity of 256GB, this unit is a single module with a PCIe Gen4 x4 NVMe bus speed, offering fast and efficient data storage and retrieval. Made by Samsung in Korea, South, this SSD is a reliable choice for enhancing the speed and responsiveness of your computer system.