Our Take
The WD Black SN850X is a high-end PCIe Gen 4 NVMe SSD aimed at PC gamers and power users who want top-tier sequential speeds without paying flagship GPU prices. At 2TB it sits near the top of the consumer SSD market, competing directly with Samsung's 990 Pro and Seagate's FireCuda 530.
Key Features
Sequential read speeds up to 7,300 MB/s and write speeds up to 6,600 MB/s
PCIe Gen 4 x4 interface via M.2 2280 form factor
Compatible with PS5 as a storage expansion drive (heatsink version available separately)
WD_BLACK Dashboard software includes Game Mode 2.0 for dynamic performance adjustment during gaming sessions
Available with or without an integrated heatsink
Uses WD's in-house controller paired with SanDisk NAND flash
Our Verdict
The SN850X is a genuine recommendation for PC gamers on Gen 4 platforms and PS5 owners who need fast, high-capacity storage. If your workload is mostly browsing, documents, or light gaming, a mid-range Gen 4 drive will serve you just as well for considerably less money.