Plextor M8Pe M.2 2280 256GB NVMe PCI-Express 3.0 x4 MLC Internal Solid State Drive (SSD) PX-256M8PeG Max Sequential Read: Up to 2000 MBps Max Sequential Write: Up to 900 MBps 4KB Random Read: Up to 210,000 IOPS Controller: Marvell 88SS1093 4KB Random Write: Up to 230,000 IOPS Max Shock Resistance: 1500G Max Vibration Resistance: 7~800Hz, 1.63Grms (Operating) Cache: 512MB