The SanDisk Extreme Pro was a solid-state drive in the M.2 2280 form factor, launched in 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 SanDisk Extreme Pro interfaces using a PCI-Express 3.0 x4 connection. The SSD controller is the 20-82-007011 Triton MP28 from WD, a DRAM cache chip is available. SanDisk has installed 64-layer TLC NAND flash on the Extreme Pro, the flash chips are made by Toshiba. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are processed more quickly. The Extreme Pro is rated for sequential read speeds of up to 3,400 MB/s and 2,500 MB/s write; random IOPS reach up to 410K for reads and 330K 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. SanDisk guarantees an endurance rating of 300 TBW, a typical value for consumer SSDs.