Apacer 256GB NAS SSD Drive; Interface-SATA III, NAND flash 3D TLC; Continuous Read Speed (MB/s) 550, Continuous Write Speed (MB/s) 490, 4K Random R/W Speed (IOPS) 84,000; Random Write IOPS (4K) 86,000, Retail Box, 2 year warranty

Apacer 512GB NAS SSD Drive; Interface-SATA III, Terabytes Written (TBW) 820, NAND flash 3D TLC; Continuous Read Speed (MB/s) 550, Continuous Write Speed (MB/s) 490, 4K Random R/W Speed (IOPS) 75,000; Random Write IOPS (4K) 68,000, Retail Box, 2 year warranty