https://www.pcgamer.com/intels-660p-series-brings-sata-pricing-to-faster-nvme-ssds/

The hype surrounding recent 4-bit quad-level cell (QLC) NAND flash memory chip announcements has been that they will lead to bigger capacity and more affordable solid state drives. Intel is already delivering on the latter promise with its new SSD 660p series.

These new drives come in the M.2 form factor and utilize an NVMe interface to shuttle data through the PCI Express bus. They are also the first NVMe drives to use 4-bit QLC memory chips (Samsung will release 2.5-inch SATA drives that use QLC chips later this year).