The Samsung PM961 256GB internal solid-state drive (MZ-VLW2560) is a high-speed, green-colored drive designed for use with laptops and PCs. With a read speed of 500MB/s, this M.2 form factor SSD provides reliable storage with a capacity of 256GB. It features a low noise level and is removable, making it a convenient and efficient storage solution for various computing needs. The drive is compatible with NVMe, PCI Express, and mSATA interfaces, offering flexibility in how it is connected to a system for optimal performance.