WD_BLACK SN850X 4TB NVMe SSD - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS400T2X0E

Great quality and reliable functionality that you'd expect from Western Digital. The capacity is amazing, it has blazing fast read/write speeds, and installation was a breeze as it fits a standard M.2 socket. I was able to immediately initialize and partition it for use after installing it. This went into my laptop, so it obviously changed nothing externally and added only a few grams to the weight. It's pricey, but I'd rather get a good one from a brand I trust than just go with the cheapest option available.

I’ve been using this drive for a few months, and it’s easily one of the fastest and most stable Gen4 SSDs I’ve tested. Benchmarks reached 7,133 MB/s read and 4,169 MB/s write in performance mode — right in line with WD’s specs. Even under load, it maintained around 6,500 MB/s read and 3,600 MB/s write, showing great consistency. For testing purposes, I also ran a power-saving “stress” scenario that intentionally limited performance to simulate extreme throttling. Those results were only for analysis — customers will never experience that kind of slowdown in normal use. Thermals stay solid with a basic heatsink (mid-50 °C), and there’s no throttling during long transfers. The WD Dashboard software is easy to use and adds an optional Gaming Mode for max speed. ⚖️ Pros: - Reaches full Gen4 performance (7,000+ MB/s reads) - Excellent sustained write speed and thermal stability - Rock-solid reliability for OS, games, or content creation - Intuitive WD Dashboard software ⚠️ Cons: - Can run warm without heatsink - Requires a PCIe Gen4 slot and good airflow for full speed 🏁 Final Thoughts: The WD_BLACK SN850X is a premium SSD that lives up to its reputation. Under the right conditions, it delivers near-theoretical Gen4 speeds and flawless stability. Even in multitasking or gaming scenarios, performance stays consistent and responsive. The “low” benchmark results included here were testing artifacts—stress conditions designed to show how power management affects throughput, not what normal users should expect. In everyday use, this drive is exceptionally fast, reliable, and built to last. ✅ Verdict: A flagship-level NVMe SSD that rewards systems tuned for performance. Highly recommended for gamers, developers, and creators who want speed with zero compromise.

Rating: ⭐⭐⭐⭐⭐ The WD_BLACK 4TB SN850X NVMe Internal Gaming SSD is a storage beast that revolutionizes your gaming and productivity experience with its astonishing speed and generous capacity. Pros: 1. Blistering Speed: The Gen4 PCIe interface and M.2 2280 form factor of this SSD offer speeds of up to 7,300 MB/s. This means lightning-fast loading times for games and near-instantaneous data access. 2. Massive Capacity: With 4TB of storage, you have ample space for your game library, multimedia, and work files. No more worrying about running out of storage or needing to juggle files. 3. Gaming Performance: The SSD is optimized for gaming, ensuring that your games load quickly and run smoothly, reducing lag and stuttering in resource-intensive titles. 4. WD_BLACK Dashboard: The WD_BLACK Dashboard software allows you to monitor your SSD’s performance and optimize it for your specific needs. 5. Reliable Brand: Western Digital is a trusted name in storage solutions, known for its quality and reliability. 6. M.2 Form Factor: The M.2 form factor allows for a clean and compact installation on compatible motherboards, saving space in your PC case. Cons: 1. Price: The combination of high capacity and Gen4 speeds comes at a premium. It might be overkill for users who don’t require the fastest storage or those on a tight budget. In summary, the WD_BLACK 4TB SN850X NVMe Internal Gaming SSD is a performance monster that transforms your gaming and storage experience. If you’re a gamer, content creator, or professional who demands the best in storage, this SSD is a top choice. While the price may be a barrier for some, the unparalleled speed and vast storage it provides make it a fantastic investment for high-end builds. Highly recommended!

Went from a 1TB NVME to a 4 TB NVME. I had a Skytech Gaming computer that for whatever reason only came with 1TB storage. It had an extra slot for NVME, but it is under the video card which I had no desire to mess around with and if needed later I can use. I cloned the 1TB onto this 4TB (WD_BLACK SN850X 4TB NVMe SSD - M.2 2280) with a Coolpie CR220 cloner that I got off of Amazon. The clone process is simple. Put new NVME and old NVME in slots of the cloner, turn on, set switch to copy and press button to run. Videos I watched said the process could take hours, mine took about 15 minutes from a 90% full 1TB to the 4TB new NVME. When I put the new cloned 4TB in my computer it booted and everything worked just fine. This 4TB has faster Read/Write and is 4x the storage of what I came from. After adding this my fans now run quieter as my computer isn't trying to use the last remaining storage of the 1TB and now has 3 more TB to work with. If you are doing a clone and want to adjust/extend partitions, I recommend using the free program MiniTool Partition Wizard. I used it to extend my partition, otherwise you will be creating a new partition(s) with the storage that this adds (if you are coming from a smaller NVME to this 4TB). I chose the WD_BLACK SN850X 4TB NVME SSD - M.2 2280 because the videos I watched with regards to gaming storage/NVME, recommended this over others.

Chegou perfeito e está rodando bem! Muito rápido!

After upgrading from my older SATA SSD to the WD_BLACK SN850X 4TB, I can confidently say this drive is an absolute beast. The difference in performance is night and day, and I'm honestly blown away by how quick everything loads. Installation was straightforward on my PCIe Gen4 motherboard, and Windows recognized it immediately. The first thing I noticed was the incredible speed - benchmarks showed read speeds hitting around 7,200MB/s and write speeds at 6,500MB/s, pretty much matching WD's advertised specs. I've loaded this drive with my entire gaming library (and trust me, 4TB holds A LOT), and the loading times are incredible. Games like Cyberpunk 2077 and Microsoft Flight Simulator, which were previously painful to load, now start up in mere seconds. The difference in texture streaming and open-world gaming is particularly noticeable - zero stuttering when moving through large environments. Temperature management is also impressive. Even during heavy gaming sessions and large file transfers, the drive stays reasonably cool thanks to its efficient heat management system. The only minor drawback might be the price point, but considering you're getting top-tier Gen4 performance and a massive 4TB of storage, it's actually quite reasonable for what you're getting. Pros: Blazing fast read/write speeds Massive 4TB capacity Excellent thermal management Great for gaming and content creation Reliable performance Cons: Premium price point Requires PCIe Gen4 for full performance Overall, if you're serious about gaming and want both speed and capacity, the WD_BLACK SN850X 4TB is absolutely worth the investment. It's become the cornerstone of my gaming setup, and I couldn't be happier with the performance. 5/5 stars - Highly recommended!

Excellent SSD, ultra rapide et stable. Installation simple, reconnu direct. Parfait pour le gaming et le multitâche. Rien à redire.

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