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The SanDisk SN7100 is a PCIe 4.0 NVMe M.2 2280 drive rated at 7,250 MB/s read and 6,900 MB/s write, among the fastest PCIe 4.0 drives available. It uses TLC 3D NAND and runs DRAM-less, relying on host memory buffer and a large SLC cache instead of a dedicated DRAM chip. That keeps it efficient and cool enough for laptops and PS5 expansion, but sustained writes can slow once the cache fills. It suits gamers, builders and laptop upgraders who want near-top PCIe 4.0 speed without paying for a flagship DRAM drive.
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Lowest price we've seen: $271.99 on Nov 10 at Newegg. Tracked across 2 stores since Nov 10.
Reviews of the SN7100 line treat it as a fast, efficient PCIe 4.0 drive that punches near flagship level in everyday and gaming loads. Testers note the DRAM-less design shows in long sustained writes, but most find it a sensible value for typical use.
