Mainland Chinese semiconductor firm Yangtze Memory Technologies Co (YMTC), has reportedly struck a NAND flash memory chip supply deal with popular solid-state storage products brand Lexar, which specializes in SSDs, memory cards, and USB flash drives; and more importantly, enjoys a prominent market presence in the West. Micron Technology had, in 2017, sold the Lexar brand to Longsys, a Chinese electronics conglomerate. YMTC's first products sold to Lexar will be a 512 Gbit 128-layer 3D QLC NAND flash memory chip for Lexar's nCard line of microSDXC cards, which ships in 64 GB, 128 GB, and 256 GB densities, offering transfer speeds of up to 90 MB/s reads, with up to 70 MB/s writes.