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Dramatically slow write speeds on the 2021 Helios 300 PH315-54-760S PCIe 4 NVMe SSD — Acer Community
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Amazon.com: Inland Premium 512GB SSD M.2 2280 PCIe NVMe 3.0 x4 3D NAND Internal Solid State Drive, High Speed Read/Write Speed up to 3100MB/s and 1900MB/s, NVMe 1.3 & PCIe 3.1 Compatible,
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M.2 drive getting ridiculous slow speeds, reported 3470/3000MB read/write but only getting 600/400 : r/buildapc
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Samsung's new 980 Pro PCIe 4.0 M.2 SSD offers read speeds up to 7,000MB/s: Digital Photography Review
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