Western Digital 0TS1928 2.0TB Ultrastar DC SN640... at MacSales.com
2.0TB Western Digital 0TS1928 Ultrastar DC SN640 Enterprise Class 2.5-inch 7mm NVMe U.2 Solid-State Drive for Windows and Linux Systems. High-Performance Enterprise SSD with sustained data rates up to 3100MB/s. For use in systems running Windows and Linux (see minimum OS requirements).

4tb: $349 or 365
2tb: $209 or 225
1tb; $100 or 130
PCI 3, read optimized
These look to be the 0.8DWPD model, not the 2 DWPD model.
I also can't tell why they have 2 listings for drives at slightly different prices with no obvious differentiation except that the more expensive one is marked as for mac.