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WD Black 4TB SN850X NVMe Internal Gaming SSD Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,300 MB/s - WDS400T2X0E
989.99 CAD
Gamers and power users wanting a flagship 4TB Gen4 NVMe with DRAM cache and proven WD reliability for demanding PC or PS5 use.
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About this product
Key features
- TRANSFORM YOUR PC. Get top-tier performance and ridiculously short load times for your gaming PC or workstation with insane speeds up to 7,300 MB/s (2)
- MORE ROOM, MORE GAMES. Capacities up to 8TB (1) built with Western Digital TLC 3D NAND, means you get to download more games — and stop deleting your favorites.
- HEATSINK FOR THE WIN. All capacities have an optional heatsink version to help maintain peak performance through your most intense gaming sessions.
- DO MORE WITH DASHBOARD. The downloadable WD_BLACK Dashboard (Windows only) monitors your drive’s health, lets you customize your RGB lighting (heatsink versions only), and can automatically detect games to turn on Game Mode 2.0.
- FUTURE-FORWARD FEATURES. The WD_BLACK SN850X boasts a powerful suite of features, including Predictive Loading, Overhead Balancing, and Adaptive Thermal Management (ATM).
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Specifications
- DRAM
- Yes (DRAM cache)
- NAND
- WD/SanDisk 3D NAND
- Model
- WDS400T2X0E
- Capacity
- 4TB
- Interface
- PCIe Gen4 x4, NVMe
- Form Factor
- M.2 2280
- Sequential Read
- Up to 7300 MB/s
Pros
- ✓Flagship WD_Black Gen4 performance up to 7300 MB/s read
- ✓DRAM cache for excellent sustained performance
- ✓Game Mode 2.0 and WD Dashboard software
- ✓Proven firmware with 5-year warranty
Cons
- ×No heatsink on this SKU (separate heatsink model exists)
- ×Runs warm under heavy sustained load
- ×Premium pricing
FAQ
Does the SN850X have DRAM?
Yes, the SN850X is a DRAM-equipped flagship drive, which helps it maintain strong, consistent performance under heavy workloads.
How fast is the 4TB SN850X?
It is rated up to 7300 MB/s sequential read over PCIe Gen4 x4.
Is it good for a PS5?
Yes, it exceeds Sony's recommended speed; use the heatsink version or add an aftermarket heatsink for the PS5, as this model ships without one.