Upgrade the RAM and storage of nearly any Apple computer at MacSales.com. We also provide refurbished Macs, external storage, docks, accessories, and more!
4tb: $349 or 365
2tb: $209 or 225
1tb; $100 or 130
PCI 3, read optimized
https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/western-digital/product/data-center-drives/ultrastar-nvme-series/data-sheet-ultrastar-dc-sn630.pdfThese 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.