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4TB* WD_BLACK™ SN8100 PCIe® 5.0x4 NVMe™ M.2 SSD - WDS400T1X0M-00CMT0

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  • 1TB
  • 2TB
  • 2TB w/ Heatsink
  • 4TB
  • 4TB w/ Heatsink
  • 8TB w/ Heatsink
  • EXPERIENCE PCIe® Gen 5. Drastically enhance your gaming and content creation experience with this PCIe® Gen 5.0x4 NVMe™ M.2 SSD.
  • BREAKNECK SPEEDS. Your drive reaches sequential read speeds up to an astonishing 14,900MB/s**, sequential write speeds up to 14,000MB/s**, and over 2,300,000 IOPS** of random performance (2TB-4TB* models).
  • ADVANCED RELIABILITY. Our latest TLC 3D CBA NAND technology helps ensure your experience is exquisite, no matter if you’re gaming or working.
  • AN INDUSTRY-LEADER IN POWER EFFICIENCY. Enjoy over 100% more power efficiency than PCIe® Gen4.*** Plus, run your machine at optimal performance with an average operating power of 7W** or under.
  • ENDURANCE FOR YOUR WORKLOAD. Up to 2,400 TBW† (4TB* model) endurance means your machine can handle even the most intense tasks.
  • ROOM FOR REVOLUTION. Hold your biggest projects and still have room for OS updates, models for AI-powered applications, and your game library thanks to immense capacities up to 4TB.
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Overview
Specs
Reviews (38)
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WD_BLACK SN8100 NVMe SSD

Merchant Video

Legal Disclaimers

(1) 1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.

(2) 1MB/s = 1 million bytes per second. IOPS = input/output operations per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, and other factors.

(3) TBW (terabytes written) values calculated using JEDEC client workload (JESD219) and vary by product capacity.

(4) Over 100% more power efficient than 2TB WD_BLACK SN850X NVMe SSD.

Sandisk and the Sandisk logo are registered marks or marks of the Sandisk Corporation or its affiliates in the U.S. and/or other countries. The NVMe word mark is a mark of NVM Express, Inc. PCIe is a registered mark of PCI-SIG. Windows and Microsoft are registered marks of the Microsoft group of companies. All other marks are the property of their respective owners. Product specifications subject to change without notice. Pictures shown may vary from actual products.

2025 SanDisk Corporation or its affiliates. All rights reserved.

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Experience The Breakneck Speed of PCIe Gen 5

Designed to Perform

An Industry-leader for PCIe Gen 5 Power Efficiency

Enhance your gaming and content creation experience with the speed of PCIe Gen 5.0x4 NVMe M.2 SSD technology — perfect for gaming, content creation, and loading models for AI-powered applications.

Our latest TLC 3D CBA NAND technology provides our most advanced combination of speed and reliability to ensure your experience is at top performance, no matter if you’re gaming or working.

Enjoy over 100% more power efficiency than our PCIe Gen4(4) drive. Plus, an average operating power of 7W(2) or under helps keep your drive running at optimal performance.

WD_BLACK SN8100 NVMe SSD

Merchant Video

Blistering Speeds for Intense Tasks

Endurance for Every Workload

Room for Revolution

The WD_BLACK SN8100 SSD reaches sequential read speeds up to 14,900MB/s(2), sequential write speeds up to 14,000MB/s(2), and over 2,300,000 IOPS(2) of random performance (2TB – 4TB(1) models).

With up to 2,400 TBW(3) (4TB(1) model) endurance, your machine can handle even the most intense tasks, such as gaming, caching, video editing, and AI workloads.

Hold your biggest projects and still have room for OS updates, models for AI-powered applications, large datasets, and your game library thanks to immense capacities up to 4TB.(1)

Legal Disclaimers

(1) 1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.

(2) 1MB/s = 1 million bytes per second. IOPS = input/output operations per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, and other factors.

(3) TBW (terabytes written) values calculated using JEDEC client workload (JESD219) and vary by product capacity.

(4) Over 100% more power efficient than 2TB WD_BLACK SN850X NVMe SSD.

Sandisk and the Sandisk logo are registered marks or marks of the Sandisk Corporation or its affiliates in the U.S. and/or other countries. The NVMe word mark is a mark of NVM Express, Inc. PCIe is a registered mark of PCI-SIG. Windows and Microsoft are registered marks of the Microsoft group of companies. All other marks are the property of their respective owners. Product specifications subject to change without notice. Pictures shown may vary from actual products.

2025 SanDisk Corporation or its affiliates. All rights reserved.

Overview

The WD_BLACK™ SN8100 is a 4TB internal solid state drive for consumer systems. Its PCIe® Gen 5.0x4 NVMe™ interface, high sequential speeds, and 4TB capacity support gaming, content creation, large projects, operating system updates, AI application models, and game libraries.


Key Features

  • 4TB capacity for large projects and game libraries
  • PCIe® Gen 5.0x4 interface with NVMe™ protocol
  • Up to 14,900 MBps sequential read and 14,000 MBps sequential write
  • Up to 2,300,000 IOPS 4KB random read and 2,400,000 IOPS 4KB random write
  • 4GB DRAM cache and TLC 3D CBA NAND technology

Performance

The drive delivers up to 14,900 MBps sequential read speeds and up to 14,000 MBps sequential write speeds. Random performance reaches up to 2,300,000 IOPS for 4KB random read and up to 2,400,000 IOPS for 4KB random write. Active power consumption is 6.5W for read and 7.0W for write.


Design

The SSD uses an M.2 2280 form factor and is supplied without a heatsink. Dimensions are 80mm wide, 22mm deep, and 2.38mm high, with a weight of 7.5g.


Connectivity & Compatibility

The internal SSD uses a PCI-Express 5.0 x4 interface and NVMe protocol in an M.2 2280 form factor. It is specified for consumer use.


Reliability & Durability

The drive is rated for up to 2,400TB written and has an MTTF of 1,750,000 hours. Operating temperature is 32°F to 185°F (0°C to 85°C), while storage temperature is -40°F to 185°F (-40°C to 85°C). Maximum shock resistance is 1,500G @0.5 ms half sine. Operating vibration is 5 gRMS, 10-2000 Hz, 3 axes; non-operating vibration is 4.9 gRMS, 7-800 Hz, 3 axes.


Specifications

  • Brand: Western Digital
  • Model: WDS400T1X0M-00CMT0
  • Device Type: Internal Solid State Drive (SSD)
  • Capacity: 4TB
  • Form Factor: M.2 2280
  • Interface: PCI-Express 5.0 x4
  • Protocol: NVMe
  • Cache: 4GB DRAM
  • Max Sequential Read: Up to 14900 MBps
  • Max Sequential Write: Up to 14000 MBps
  • 4KB Random Read: Up to 2,300,000 IOPS
  • 4KB Random Write: Up to 2,400,000 IOPS
  • Terabytes Written (TBW): 2400TB
  • MTTF: 1,750,000 Hours
  • HeatSink: without HeatSink
  • Power Consumption (Idle): Sleep (PS4): 5 mW
  • Power Consumption (Active): 6.5W Read / 7.0W Write
  • Height: 2.38mm
  • Width: 80mm
  • Depth: 22mm
  • Weight: 7.5g

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies*

  • Return for refund within: 30 days
  • Returns are subject to restocking fees and return shipping fees. Please click here to learn more about restocking fees and return shipping fees.
  • This item is covered by Newegg.com's International Order Return Policy.
  • Read full return policy for details.
  • *Subject to applicable law

  • Warranty Notice:

    This product does not include manufacturer warranty when purchased or used outside of its designated sales region. By purchasing internationally, you acknowledge that warranty support from the manufacturer will not be available.

Manufacturer Contact Info

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The WD_BLACK SN8100 is a 4TB PCIe 5.0 x4 NVMe M.2 2280 SSD for gamers, content creators, and other users who need fast storage for demanding workloads, offering sequential read speeds up to 14,900 MB/s and write speeds up to 14,000 MB/s.

Recommended For

  • Video editors and content creators moving large footage, project files, or scratch data on a PCIe 5.0 workstation can use the 4TB capacity and high sequential transfer performance to keep large storage-heavy jobs on one drive.
  • Users handling frequent large file copies, datasets, or other read-and-write-heavy work can benefit from the SN8100’s strong transfer performance, especially in a system with a PCIe 5.0 M.2 slot.
  • PC builders loading local AI models or keeping large model files and datasets on fast internal storage can make use of the 4TB capacity and PCIe 5.0 performance; the system must support an M.2 2280 NVMe drive.
  • Gamers building a compatible high-end PC who want a large game library and fast game installs, copies, and loading can use the SN8100’s capacity and strong storage benchmarks, though the benefit is most relevant when the system supports PCIe 5.0.

Spec Summary

AttributeValue
Best ForConsumer desktop or laptop use for gaming, content creation, multimedia, and loading AI application models
Capacity And Form Factor4TB internal SSD in an M.2 2280 form factor
Interface And ProtocolPCIe 5.0 x4 with NVMe protocol
Read And Write PerformanceSequential speeds up to 14,900 MB/s read and 14,000 MB/s write; 4KB random performance up to 2,300,000 IOPS read and 2,400,000 IOPS write
Cache And NAND4GB DRAM cache with TLC 3D CBA NAND and nCache 4.0
Endurance And ReliabilityRated for up to 2,400 TBW with an MTTF of 1,750,000 hours
Power6.5W read and 7W write; 5mW in Sleep (PS4)
Operating And Storage ConditionsOperating temperature: 0°C to 85°C; storage temperature: -40°C to 85°C
Shock And Vibration ResistanceShock resistance up to 1,500G at 0.5 ms; operating vibration 5 gRMS and non-operating vibration 4.9 gRMS
Dimensions And Weight80 × 22 × 2.38 mm; 7.5 g
Cooling And SecurityNo heatsink; supports TCG Opal security
Model IdentifiersWD_BLACK SN8100; WDS400T1X0M-00CMT0