The Samsung 970 EVO was a solid-state drive in the M.2 2280 form factor, launched on May 7th, 2018, that is no longer in production. It was available in capacities ranging from 250 GB to 2 TB. This page reports specifications for the 1 TB variant. With the rest of the system, the Samsung 970 EVO interfaces using a PCI-Express 3.0 x4 connection. The SSD controller is the Phoenix (S4LR020) from Samsung, a DRAM cache chip is available. Samsung has installed 64-layer TLC NAND flash on the 970 EVO, the flash chips are made by Samsung. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are soaked up more quickly. The cache is sized at 42 GB, once it is full, writes complete at 1200 MB/s. The 970 EVO is rated for sequential read speeds of up to 3,400 MB/s and 2,500 MB/s write; random IOPS reach up to 500K for reads and 450K for writes.
At its launch, the SSD was priced at 450 USD. The warranty length is set to five years, which is an excellent warranty period. Samsung guarantees an endurance rating of 600 TBW, a typical value for consumer SSDs.