The ADATA Legend 850 Lite is a solid-state drive in the M.2 2280 form factor, launched in 2023. It is available in capacities ranging from 500 GB to 2 TB. This page reports specifications for the 2 TB variant. With the rest of the system, the ADATA Legend 850 Lite interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the SM2269XT from Silicon Motion, a DRAM cache is not available. ADATA has installed 176-layer TLC NAND flash on the Legend 850 Lite, the flash chips are made by Micron. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are soaked up more quickly. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The Legend 850 Lite is rated for sequential read speeds of up to 5,000 MB/s and 4,600 MB/s write.
At its launch, the SSD was priced at 89 USD. The warranty length is set to three years, which is above average, but shorter than the five years offered by many other vendors. ADATA guarantees an endurance rating of 450 TBW, a relatively low value compared to other SSDs.