The Addlink S70 was a solid-state drive in the M.2 2280 form factor, launched in 2019, that is no longer in production. It was available in capacities ranging from 256 GB to 2 TB. This page reports specifications for the 1 TB variant. With the rest of the system, the Addlink S70 interfaces using a PCI-Express 3.0 x4 connection. The SSD controller is the PS5012-E12-27 from Phison, a DRAM cache chip is available. Addlink has installed 64-layer TLC NAND flash on the S70, the flash chips are made by Toshiba. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are soaked up more quickly. The S70 is rated for sequential read speeds of up to 3,400 MB/s and 3,000 MB/s write; random IOPS reach up to 330K for reads and 180K for writes.
At its launch, the SSD was priced at 184 USD. The warranty length is set to five years, which is an excellent warranty period. Addlink guarantees an endurance rating of 1700 TBW, a good value.