Samsung 512GB PCIe Gen4x4 NVMe M. 2 2280 SSD (OEM) – Model MZ-VL45120 Part Number. Genuine Samsung 512GB NVMe SSD with PCIe Gen4x4 performance in the standard M. 2 2280 form factor. This is an OEM Samsung drive (Model: MZ-VL45120), ideal for upgrading laptops or desktops that support NVMe M….