Synology SNV3400 800GB NVMe M.2 2280 Enterprise SSD - Form Factor: M.2 2280 - Interface: NVMe PCIe 3.0 x4 - Sequential Read Speeds: Up to 3,100MB/s, Sequential Write Speeds: Up to 1000MB/s - Random Read Speed: Up to 375,000 IOPS, Random Write Speed: Up to 70,000 IOPS - TBW: 988TB - MTBF: 1,800,000 Hours - SNV3400-800G