What is the difference between PCIe Gen 3 X2 and X4 SSDs? Can these two SSDs be used for laptops that support the PCIe interface? - Quora
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.
Kingmax Introduces New PJ-3280 M.2 NVMe SSD Aimed At Budget Market
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SKhynix BC711 HFM512GDHTNG-8310A 512GB MVMe PCIe Gen3x2 M.2 2242 SSD For T480 LA | eBay