PCIe x16 - 2.0 vs. 3.0 Slots | Tested in 4 Games @ 1440p | GTX 1070 - YouTube
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Amazon.com: NVME PCIe x16 Adapter, Electop M.2 Key-M SSD to PCI 3.0 Express Expansion Card, Support 2230/2242/2260/2280 with Heat Sink, Compatible with Windows XP / 7/8 / 10 & MAC OS System : Electronics