This product is either discontinued or we cannot get that from suppliers.
Western Digital Blue WDS250G1B0C, Internal Solid State Drive (SSD), FF M.2 2280, 250GB, Memory Components 3D NAND, Interface PCI-Express 3.0 x2, Max Sequential Read Up to 1700 MBps/ Write Up to 1300 MBps, 4KB Random Read Up to 210,000 IOPS/Write Up to 170,000 IOPS, MTTF 1.75M hours.
The WD Blue™ SN500 NVMe™ SSD steps up performance three times over our high-end SATA SSDs with a superior NVMe solution for high-performance and mainstream PCs. The WD Blue SN500 NVMe SSD allows resellers, system builders.