What is the maximum sequential read speed of the WD_BLACK SN850X 1TB?

The WD_BLACK SN850X 1TB delivers up to 7,300MB/s sequential read speed over PCIe Gen4 x4 interface. This performance level is achieved through the drive's 112-layer BiCS5 TLC NAND architecture and WD proprietary controller with DDR4 DRAM cache, enabling rapid file transfers and minimal OS boot times.

Is the WD_BLACK SN850X 1TB compatible with older PCIe Gen3 systems?

Yes, the SN850X maintains backward compatibility with PCIe Gen3 and Gen2 systems. When installed in Gen3 systems, the drive operates at Gen3 speeds (approximately 3,500MB/s), providing reliable performance while allowing future upgrades to Gen4 platforms without drive replacement.

What is the endurance rating and warranty for the 1TB model?

The 1TB model provides 600 TBW (terabytes written) endurance rating, supporting approximately 164GB daily writes for one year. Western Digital backs the drive with a 5-year limited warranty and 1,750,000-hour MTTF, ensuring long-term reliability for consumer and professional applications.

Does the drive include a heatsink, and what are the dimensions?

The standard 1TB model ships without a heatsink. Dimensions are 80mm length × 22mm width × 2.38mm height, weighing 7.5g ± 1g. A heatsink variant is available separately for systems requiring enhanced thermal management during sustained high-performance operations.

What advanced features does the SN850X 1TB include?

The drive features Predictive Loading for optimized game performance, Overhead Balancing for consistent throughput, and Adaptive Thermal Management (ATM) to prevent throttling. It also supports Microsoft DirectStorage technology, reducing load times in compatible gaming environments.

What random access performance can I expect from the 1TB model?

The 1TB model achieves 800K IOPS random read and 1,100K IOPS random write performance. These specifications support responsive system operation for mixed workloads, database operations, and virtualized environments where unpredictable access patterns are common.

WDS100T2X0E - Western Digital WDS100T2X0E SN850X 1TB NVMe SSD

Name: Western Digital WDS100T2X0E SN850X 1TB NVMe SSD
Brand: Western Digital
SKU: WDS100T2X0E
Price: 355 USD
Availability: InStock

WDS100T2X0E - Western Digital WDS100T2X0E SN850X 1TB NVMe SSD | US IT Hardware

Product overview

The WD_BLACK SN850X 1TB is a high-performance NVMe SSD designed for gaming and professional workstations. Built on PCIe Gen4 x4 interface with 112-layer BiCS5 TLC 3D NAND technology, it delivers sequential read speeds of 7,300MB/s and write speeds of 6,300MB/s. Random performance reaches 800K IOPS read and 1,100K IOPS write. The drive features M.2 2280 form factor, operates within 0°C to 85°C temperature range, and provides 600 TBW endurance rating. Advanced features include Predictive Loading, Overhead Balancing, and Adaptive Thermal Management for sustained performance. Compatible with PCIe Gen3 and Gen2 systems, it supports Microsoft DirectStorage technology. Ideal for gaming PCs, content creation workstations, and high-performance computing environments requiring fast load times and reliable storage.

7,300MB/s sequential read speed for ultra-fast boot and load times
PCIe Gen4 x4 interface with backward compatibility to Gen3/Gen2
800K IOPS random read performance for responsive system operation
600 TBW endurance with 5-year warranty and 1.75M hour MTTF
M.2 2280 form factor compatible with all modern systems
112-layer BiCS5 TLC NAND with Adaptive Thermal Management

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	WDS100T2X0E
Brand	Western Digital
Condition	New
Model	WDS100T2X0E-00BCA0
Technology	TLC 3D NAND; PCIe Gen4 NVMe
Product Line	WD_BLACK SN850X
Product Type	NVMe Solid State Drive; Gaming-optimized storage

Physical Characteristics

Form Factor	M.2 2280 (M-key)

Interface/Ports

Compatible systems

Compatible with M.2 2280 NVMe systems; Windows 8.1+; PS5 (heatsink variant)

Any
Form factor: M.2 (M-key) port supporting 2280
Computers with M.2 2280 support; PlayStation 5 (heatsink model only)

Best for

Gaming
Delivers 7,300MB/s sequential read speeds and 800K IOPS random read performance, eliminating load times and texture pop-ins in demanding AAA titles.
Content Creation
6,300MB/s write speed and 1,100K IOPS write performance enable fast video rendering, 4K editing, and large file transfers for creative professionals.
High-Performance Workstations
PCIe Gen4 x4 interface with 600 TBW endurance supports intensive workloads including 3D modeling, simulation, and data analysis with sustained performance.
System Boot Drive
7,300MB/s read speed significantly reduces OS boot times and application launch delays in enterprise and consumer PC environments.

Endurance TBW	600 TBW
Random Read IOPS	800K IOPS
Random Write IOPS	1,100K IOPS
Sequential Read Speed	7,300 MB/s
Sequential Write Speed	6,300 MB/s

NAND Type	Western Digital TLC 3D NAND
Media Type	TLC 3D NAND

Weight	7.5g ± 1g (non-heatsink model)
Dimensions	Length: 80 ± 0.15mm; Width: 22 ± 0.15mm; Height: 2.38mm (non-heatsink model)

Storage Temperature	-40°F to 185°F (-40°C to 85°C)
Operating Temperature	32°F to 185°F (0°C to 85°C)

Western Digital WDS100T2X0E SN850X 1TB NVMe SSD

Product overview

Featuring

Physical Characteristics

Interface/Ports

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Drive Performance

Media & Performance

Weight & Dimensions

Compliance Standards

Environmental Condition

Western Digital WDS100T2X0E SN850X 1TB NVMe SSD

Product overview

Featuring

Physical Characteristics

Interface/Ports

Compatible systems

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Shop these collections

Drive Performance

Media & Performance

Weight & Dimensions

Compliance Standards

Environmental Condition