WD_BLACK 4TB SN850X NVMe Internal Gaming SSD Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,300 MB/s - WDS400T2X0E

Overview

The WD_BLACK SN850X NVMe is a 4TB internal gaming SSD for consumer gaming PCs and workstations. Its PCIe 4.0 x4 NVMe interface, high sequential performance, and M.2 2280 form factor support short load times and responsive storage performance.

Key Features

• 4TB capacity with 3D NAND TLC memory components
• Sequential read speeds up to 7,300 MB/s and sequential write speeds up to 6,600 MB/s
• 4KB random read performance up to 1,200,000 IOPS and random write performance up to 1,100,000 IOPS
• 4GB DRAM cache
• WD_BLACK Dashboard support for Windows

Performance

The drive delivers sequential read speeds up to 7,300 MB/s and sequential write speeds up to 6,600 MB/s. Its 4KB random performance reaches up to 1,200,000 IOPS for reads and up to 1,100,000 IOPS for writes. The drive includes a 4GB DRAM cache and is rated for 2,400TB written.

Design

This internal SSD uses an M.2 2280 form factor and is the configuration without a heatsink. It measures 2.38 mm in height, 22.00 mm in width, and 80.00 mm in depth, with a weight of 7.50 g.

Connectivity & Compatibility

The drive uses a PCI-Express 4.0 x4 interface and NVMe protocol. Its M.2 2280 form factor is intended for compatible consumer systems, including gaming PCs and workstations.

Reliability & Durability

The drive has an MTTF of 1.75M Hours. Operating temperature is 0°C ~ +85°C, and storage temperature is -40°C ~ +85°C. Maximum shock resistance is 1,500G @0.5 ms half sine. Operating vibration is rated at 5 gRMS, 10-2000 Hz, 3 axes; non-operating vibration is rated at 4.9 gRMS, 7-800 Hz, 3 axes.

Software & Tools

The downloadable WD_BLACK Dashboard is Windows only. It monitors drive health and can automatically detect games to turn on Game Mode 2.0. The WD_BLACK SN850X feature set also includes Predictive Loading, Overhead Balancing, and Adaptive Thermal Management (ATM).

Specifications

• Brand: Western Digital
• Series: BLACK SN850X NVMe
• Model: WDS400T2X0E
• Device Type: Internal Solid State Drive (SSD)
• Used For: Consumer
• Capacity: 4TB
• Memory Components: 3D NAND TLC
• Interface: PCI-Express 4.0 x4
• Protocol: NVMe
• Cache: 4GB DRAM
• Max Sequential Read: Up to 7300 MBps
• Max Sequential Write: Up to 6600 MBps
• 4KB Random Read: Up to 1,200,000 IOPS
• 4KB Random Write: Up to 1,100,000 IOPS
• Terabytes Written (TBW): 2400TB
• MTTF: 1.75M Hours
• HeatSink: without HeatSink
• Dimensions: 2.38 mm height x 22.00 mm width x 80.00 mm depth
• Weight: 7.50g