CORSAIR FORCE Series MP300 SSD 120GB 240GB m.2 2280 NVMe PCIe Gen3 x2 M.2 SSD 480GB 960GB Solid State Storage 3,000MB/s laptop - AliExpress Computer & Office
Amazon.com: PCIe Gen3 x2 USB 3.2 / 3.1 Card ASM3142- PCI Express to 4-Port Type C HUB Internal Expansion Card Controller Adapter PCI Express Card Desktop PC Support Multiple INs : Electronics
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.
GIGABYTE PCIe M.2 SSD Leads NVMe Based SSD Development | News - GIGABYTE Global