The WD PC SN730 is a high-performance, mid-to-high-tier client NVMe SSD designed by Western Digital primarily for OEM laptops and pre-built desktop PCs (like HP, Dell, and Lenovo). It uses WD's in-house controller and 96-layer 3D TLC NAND flash with onboard DRAM cache, giving it fast and reliable performance compared to budget DRAM-less SSDs.