PCIe Gen 4 vs Gen 3: Do you need to spend extra on SSDs?
Samsung 990 EVO review: A bargain PCIe 5.0 NVMe SSD--sort of | PCWorld
Samsung 980 PRO 2TB Internal Gaming SSD PCIe Gen 4 x4 NVMe MZ-V8P2T0B/AM - Best Buy
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What is the difference between PCIe Gen 3 and PCIe Gen 4? - Kingston Technology