WD Black SN750 NVMe SSD WDS100T3X0C - Solid state drive - 1 TB - internal - M.2 2280 - PCI Express 3

Installed 2, 1TB SSD's on a StarTech Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (M-Key) Compatible - Supports 2242, 2260, 2280 - JBOD - Mac & PCPCI Express 3.0 M.2 SSD Adapter Card | For PCIe NVMe and PCIe AHCI M.2 SSDs Product ID: PEX8M2E2 Given the bus and card performance in made no sense to get a faster SSD. Installation was simple and as was formatting and installing macOS on to it. Boots just fine and as fast or faster than the Apple internal drive. Delivery was as promised at the expected time. It was recommended both by WD and StarTech to play it safe and get it with a heatsink. Cost a bit more but eliminates potential issues. Totally functions as expected with excellent presales support.