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The WD Black SN7100 is a 1TB PCIe Gen4 x4 NVMe M.2 2280 internal SSD built on 3D TLC NAND, rated up to 7,250 MB/s sequential read and 6,900 MB/s sequential write. It is a DRAM-less design that leans on a large dynamic SLC cache and host memory buffer, which keeps it close to pricier Gen4 drives in everyday game loads and file transfers. Its 2,400 TBW endurance rating is high for a 1TB consumer drive, and the single-sided 2280 stick fits laptops and PS5 expansion as well as desktop boards. Reviewers rate it highly for load times and sustained writes, while noting it trails top-tier Gen4 flagships in heavy random workloads and runs warm without a heatsink.
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Lowest price we've seen: $155.99 on Nov 13 at Newegg. Tracked across 3 stores since Nov 13.
Owners and reviewers rate the SN7100 very highly, praising fast game and app load times, high endurance and easy installs in laptops and consoles. Criticism centers on heat under sustained writes and the DRAM-less architecture falling behind premium Gen4 drives in heavy random workloads.
The WD Black SN7100 is a 1TB internal solid-state drive in the M.2 2280 form size.
It uses 3D TLC flash memory. Sequential speeds reach up to 7,250 MB/s for reads and 6,900 MB/s for writes. Random 4KB performance reaches up to 1,000,000 IOPS for reads and 1,400,000 IOPS for writes.
