WD_Black SN7100 4TB NVMe SSD - Gen4 PCIe, M.2 2280, Up to 7,000 MB/s Read Speed, Up to 6,700 MB/s Write Speed, Next Gen TLC 3D NAND, for Laptops, Handheld Gaming Devices - WDS400T4X0E
About this item HIGH-OCTANE GAMING. Experience speeds up to 7,250MB/s read and 6,900MB/s write (1-2TB models), with up to 35% faster performance than previous generation. PURPOSE-BUILT. Designed for serious on-the-go gamers, with a PCIe Gen4 interface and SANDISK’s next generation TLC 3D NAND. MORE SPACE FOR FAVORITES AND NEW TITLES. Available in multiple capacities up to 4TB, upgrade to an SSD that gives you tons of storage. MORE TIME TO CLEAR THAT CHECKPOINT. Built with laptops and handheld gaming devices in mind, with up to 100% more power efficiency over the previous generation. DO MORE WITH DASHBOARD. Ensure your drive is optimized for prime performance with the downloadable WD_BLACK Dashboard (Windows only). AMPLIFY YOUR CONTENT. Up to 2,400TBW endurance (4TB model) for gameplay streaming, speedrun captures, or creating with the latest game engines. POWERED BY SANDISK: The WD_BLACK, WD Blue, and WD Green flash products are manufactured by Sandisk Technologies, Inc. or its affiliates and distributed under license from Western Digital Corporation. See more product details
Pros
- Massive 4TB capacity eliminates need for multiple drives in laptops and handheld gaming devices
- Strong 7,000 MB/s read and 6,700 MB/s write speeds provide excellent Gen4 performance for gaming and content work
- Impressive 4.7-star rating across 4,700 reviews indicates proven reliability and customer satisfaction
- M.2 2280 form factor ensures broad compatibility with modern laptops, desktops, and portable gaming systems
- TLC 3D NAND technology offers better endurance and longevity compared to QLC alternatives
- WD_Black brand reputation for gaming and performance storage with robust warranty support
Cons
- Premium $555.54 price point puts it significantly above Gen5 alternatives with better performance specs
- Gen4 PCIe technology is one generation behind current Gen5 drives that offer 2x faster speeds
- Price-per-GB ratio is less competitive than smaller capacity drives or splitting storage across multiple units
- No mention of DRAM cache or thermal management features that competitors explicitly advertise
Who Is It For?
This drive is ideal for content creators, professional gamers, and power users who need 4TB of fast, reliable storage in a single M.2 slot—particularly those working with large video files, game libraries, or VM environments on laptops and handheld devices where multiple drives aren't practical. It's also well-suited for users who prioritize proven reliability (evidenced by thousands of positive reviews) over bleeding-edge Gen5 speeds they may not fully utilize in real-world scenarios.
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About this item BREAKTHROUGH PCIe 5.0 PERFORMANCE: Supercharge your workflow and gaming with PCIe 5.0, boasting up to 14,700/13,300 MB/s* sequential read/write speeds. Tackle massive files and power up your gaming with Gen5—twice as fast as the 990 PRO SSD. EVERY TASK, TURBOCHARGED: Speed past productivity limits. With random read/write speeds up to 1,850K/2,600K IOPS*, enjoy fast game loads, seamless AI apps, and efficient multitasking. Virtually no lag, no limits—just nonstop performance. THINK FAST, CREATE FASTER: With random read/write speeds of up to 1,850K/2,600K IOPS*, the 9100 PRO SSD fuels seamless AI content creation, swift loads, and smooth gameplay. Work, play, and create at lightning speed. SPEED, WHENEVER YOU NEED: From laptops to desktop PCs, experience blazing PCIe 5.0 speeds and up to 8TB of storage. Perfect for video editing, gaming, and creative tasks, with the compatibility to match your device. STAY COOL, RUN FAST: Push limits, not temperatures. A 5nm controller boosts power efficiency up to 49% over the 990 PRO SSD*, while advanced thermal control keeps performance smooth and reliable. BREAK FREE FROM STORAGE LIMITS: Expand your gaming horizons with up to 8TB of storage* on the 9100 PRO. Enjoy vast space to grow your game library, save every title, and keep all your favorites without compromise. Unleash your full gaming potential—store, save, and conquer like never before. WORKS LIKE MAGIC: It’s not hocus-pocus. Your 9100 PRO SSD performs like new with the always up-to-date Magician Software. Get seamless firmware updates, extra encryption and continual monitoring of your drive health—no magic wand required. WORLD'S NO. 1 FLASH MEMORY BRAND: Performance and reliability you can count on from the world's number one brand for flash memory since 2003.* All firmware and components are produced in house, including our world renowned DRAM and NAND, for quality you can trust. See more product details
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