Samsung 512GB NVMe M.2 SSD

Samsung PM981 512GB M.2 NVMe SSD — the OEM version of Samsung's 970 EVO (this is the drive Samsung supplies to laptop manufacturers like Lenovo, hence the FRU/Lenovo part number on the label). From the label: • Model: MZ-VLB5120 (PM981 series) • Capacity: 512GB • Interface: PCIe NVMe (PCIe 3.0 x4) • Form factor: M.2 2280 • Power: DC 3.3V, 2.8A • Security: Opal (self-encrypting drive support) • Made in China Typical performance specs for the PM981 512GB (same NAND/controller as the retail 970 EVO): • Sequential read: ~3,100–3,500 MB/s • Sequential write: ~1,300–1,600 MB/s • Controller: Samsung Phoenix • NAND: Samsung 64-layer TLC V-NAND • Interface connector: M-key (single-sided, common in ultrabooks) This is a solid, fast drive — comparable to a 970 EVO, just rebranded for OEM/laptop use rather than retail sale.