SDAPTUW-256G Western Digital PC SN520 256GB M.2 2230 Nvme Pcie GEN3 X2 SSD NGP80 M.2 SSD / Solid State Drive - Walmart.com
Amazon.com: LINKUP - NVMe Enclosure M.2 SSD to USB C 10Gbps Adapter | Aluminum Case USB 3.1 Gen 2 (10 Gbps) to PCIe Gen3 x2 Bridge Chip | for Windows & Mac
Western Digital SDAPMUW-512G 512GB PC SN520 PCIe Gen3 x2 NVMe V1.3 M.2 2242 Internal Solid State Drive - Newegg.com
Amazon.com: QNAP QM2-2P2G2T2 x PCIe Gen3 M.2 NVMe SSD & 2 x 2.5GbE Port Expansion Card to Enhance Performance : Electronics
KingSpec 512GB M.2 NVMe SSD, 2242 PCIe Gen3x2 Internal Solid State Drive for Laptop/Notebook (2242, 512GB)
I harvested a PCIe Gen3 x2 NVMe 1.3 SSD from my older laptop, the problem is that its length is short. I've held it in place with some tape, it should hold.