The Samsung 970 PRO 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 512 GB to 1 TB. This page reports specifications for the 512 GB variant. With the rest of the system, the Samsung 970 PRO 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 MLC NAND flash on the 970 PRO, the flash chips are made by Samsung. The 970 PRO is rated for sequential read speeds of up to 3,500 MB/s and 2,300 MB/s write; random IO reaches 500K IOPS for read and 370K for writes.
At its launch, the SSD was priced at 330 USD. The warranty length is set to five years, which is an excellent warranty period. Samsung guarantees an endurance rating of 600 TBW, a good value.