Solid State Drive: Replacement part for Samsung MZ-VLB2560 PM981 256GB M.2 2280 PCI-Express 3.0 x4 NVMe SSD 256GB Storage Capacity: Provides high-speed data transfer and reliable storage for your computer M.2 2280 Form Factor: Compact and lightweight design fits easily into laptops and desktops Internal Hard Drive: Installed in your computer's PCI-Express slot for quick and easy installation Samsung Brand: Known for quality and reliability in computer hardware