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 2 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 handled more quickly. The cache is sized at 78 GB, once it is full, writes complete at 1250 MB/s. The 970 EVO is rated for sequential read speeds of up to 3,500 MB/s and 2,500 MB/s write; random IO reaches 500K IOPS for read and 480K for writes.
At its launch, the SSD was priced at 850 USD. The warranty length is set to five years, which is an excellent warranty period. Samsung guarantees an endurance rating of 1200 TBW, a typical value for consumer SSDs.