The ADATA Ultimate SU650 is a solid-state drive in the 2.5" form factor, launched in 2018. It is available in capacities ranging from 60 GB to 480 GB. This page reports specifications for the 120 GB variant. With the rest of the system, the ADATA Ultimate SU650 interfaces using a SATA 6 Gbps connection. The SSD controller is the SM2258XT from Silicon Motion, a DRAM cache is not available. ADATA has installed 32-layer TLC NAND flash on the Ultimate SU650, the flash chips are made by Micron. Please note that this SSD is sold in multiple variants with different NAND flash or controller, which could affect performance, the "Notes" section at the end of this page has more info. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are processed more quickly. The cache is sized at 63 GB, once it is full, writes complete at 33 MB/s. The Ultimate SU650 is rated for sequential read speeds of up to 520 MB/s and 320 MB/s write; random IOPS reach up to 20K for reads and 75K for writes.
At its launch, the SSD was priced at 34 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 70 TBW, a good value.