WD Black SN850X 4TB PCIe Gen4 NVMe M.2 2280 Internal SSD

WD Black SN850X 4TB NVMe SSD — Built for Elite Gaming

Stop waiting. Start dominating. The WD_BLACK SN850X NVMe SSD is purpose-built for gamers who refuse to compromise. With blistering sequential read speeds of up to 7,300 MB/s and write speeds up to 6,600 MB/s via PCIe Gen4 x4, this drive crushes load times, eliminates stuttering, and keeps you in the action — not the loading screen.

At 4TB, you have room for today’s massive AAA titles (many exceeding 200GB each) without ever having to uninstall your library. Compatible with PlayStation 5 and PC, the SN850X is the ultimate upgrade for any serious gaming rig.

Key Features

• 7,300 MB/s Sequential Read – Near the limits of the PCIe Gen4 interface
• Game Mode 2.0 – Load prediction pre-loads game assets for faster in-game loading
• Extremely Low Latency – Minimal stutter and lag for smooth, responsive gameplay
• 4TB Capacity – Keep your full game library installed and ready
• PS5 Compatible – Drop-in upgrade for PlayStation 5 storage expansion
• 2,400 TBW Endurance – Exceptional longevity for heavy gaming workloads
• 5-Year Warranty – Western Digital’s full coverage

Technical Specifications

• Capacity: 4TB
• Interface: PCI Express NVMe x4 (Gen4)
• Form Factor: M.2 2280
• Max Sequential Read: 7,300 MB/s (7.13 GB/s)
• Max Sequential Write: 6,600 MB/s (6.45 GB/s)
• Random 4K Read: 1,200,000 IOPS
• Random 4K Write: 1,100,000 IOPS
• Endurance (TBW): 2,400 TB
• Warranty: 5 Years
• Weight: 0.26 oz
• Dimensions: 3.1" x 0.9" x 0.1"
• Part Number: WDS400T2X0E-00BCA0
• Compatibility: Desktop PC, PlayStation 5
• OS Support: Windows 8.1, Windows 10, Windows 11