This product is either discontinued or we cannot get that from suppliers.
WD Red 4TB 2.5" SA500 NAS SATA SSD WDS400T1R0A, Capacity 4TB, Form Factor 2.5", Interface SATA 6Gb/s, SQL Read Speed Up to 560 MB/s, SQL WRite Speed Up to 530 MB/s, Random Read/Write Up to 95/82K, Endurance 2500 TBW, MTBF Up to 2,000,000 Hours.
The 4TB Red SA500 SATA III 2.5" Internal NAS SSD from WD will boost your system's performance and responsiveness. Specifically designed for 24/7 usage, its durability and efficient caching of large files makes this drive suitable for OLTP databases.