I bought the WD_BLACK SN7100 4TB to replace my smaller WD SN570 Gen3 boot drive. Installation was straightforward i.e just slide it into the M.2 slot, and done.

Performance

Using CrystalDiskMark V9.5.0, I consistently saw around 7000 MB/s read and 6200 MB/s write on the 4 GB test, and about 6800 MB/s write on the longer 64 GB run which was remarkably close to the advertised specs. Random 4K read/write speeds also feel quick, and Windows 11 boots in roughly 5–6 seconds. However, I did observe some throttling when running 64GB Q8T1 test with temperature reaching 59°C and speed dropping to 4500MB/S. Though, it's still faster than any Gen3 drive. App launches are near-instant. I haven’t tested large game installs (like 100 GB titles) since this particular system isn’t built for heavy gaming, but for productivity and content creation, it's been great so far.

Thermals and Efficiency

Idle temperature hovers around 30°C but under sustained load, temperatures could reach up to 60°C and this is without a heatsink(except some black material came with the original laptop drive) which for a Gen4 drive is exceptional. The controller here isn’t just fast but impressively power-efficient. Compared to my older Samsung 970 EVO Plus Gen3, this one runs at a lower wattage. It’s a great fit for laptops or compact builds where cooling headroom is limited.

Storage Capacity and Software

Usable space comes out to about 3.63 TB, which is standard for 4 TB drives due to the difference between base-10 and base-2 (1000 vs 1024) calculations. My only gripe is WD’s software. The legacy Dashboard app has been replaced by Kitfox, and the 4 TB SN7100 isn’t fully recognized yet. Hopefully, WD or SanDisk pushes an update soon, as the drive itself is fantastic. Also, it could be formatted for Windows, Linux or MacOS.

Value and Endurance

This drive uses TLC 3D NAND, unlike the WD SN5000 which is QLC-based(4TB version) and often priced just a few dollars cheaper. The SN7100 offers an endurance rating of up to 2400 TBW, which should easily outlast multiple system builds. If you plan to use it in a server or NAS, I’d suggest either keeping a backup drive(RAID 1) or going with WD Red SN700, which is designed for heavier write cycles. While it’s not the cheapest 4 TB Gen4 SSD, the performance easily rivals the Samsung 990 Pro and Crucial T500, with the added benefit of lower power consumption and cooler thermals.

Verdict

If you’re upgrading from an HDD or even a SATA SSD, the SN7100 feels like a quantum jump. It combines blazing fast speed with stable thermals, and generous capacity in one package. This is an excellent choice for prosumers(creators, gamers) or anyone who's looking for a reliable performance with minimal heat output.

To conclude, if you're looking for a drive that stays cool, handles large transfers without any hiccups, and just works; look no further. Highly recommended.

I picked up a pair of WD_Black SN7100 500GB NVMe SSDs for my new QNAP NAS a while back, and they’ve been excellent. The NAS recognized them instantly when I plugged them in — no fuss, no formatting issues, just ready to go.

Performance has been solid, with fast read/write speeds that make the NAS snappy for both storage and media tasks. Build quality feels good, and they run cool even under consistent load.

If you’re looking for reliable NVMe SSDs for your NAS or storage setup, these WD_Black drives are a solid choice.

I have been using this SSD with Debian Linux, and my experience has been very positive, especially in terms of reliability. Over the past two years, I have not experienced any failures, crashes, or data loss, even under heavy workloads. Performance remains consistently fast, and the system stays stable during file transfers and daily operations. I purchased two of these drives, and both have performed equally well, demonstrating strong consistency and quality. Both my laptop and my wife’s laptop run 24/7, and we rarely power them off, so these drives have been under continuous use. We work in software engineering and infrastructure/server environments, where reliability is critical. Even under these demanding conditions, the drives have remained stable and dependable. I would definitely recommend buying this SSD.

For the price this is excellent. No data loss after about a year. Complete compatibility. Top notch speeds. No complaints.

So far, so good. Very fast read/write speeds! I installed macOS on this and use it for my Mac Mini M4's startup disk. Works great!

Very nice hard drive. Great features like data loss, and is plug and play. Very fast.

Two WD SSD m.2 drives. Install went smoothly into my eversolo t8 music streamer (music streamer). So far no issues, these drives will just be used to hold music files (FLAC) and of which will feed the streamer for a local (in-machined) music library.

I bought this specifically to put into an external USB 3.2 enclosure for heavy software development (Node.js, local databases, thousands of tiny files). Most portable SSDs you buy off the shelf use cheap QLC memory that fails under these conditions. The WD_BLACK is different. Because it uses true TLC 3D NAND and a high-end internal controller, it doesn't just do fast sequential transfers—it handles Random 4K IOPS flawlessly.

In my benchmark testing, this drive handled 5,000 separate 4KB file writes in 4.6 seconds natively through Windows. That is over 1,000 IOPS over a USB bridge, completely preventing any system lockups or compiler freezing. If you are building a custom external drive for gaming or coding, this is the silicon you want inside it.

Ich bin wirklich sehr zufrieden mit der WD_BLACK SN7100 NVMe SSD mit 1 TB. Die Installation war unkompliziert und wurde sofort vom System erkannt. Besonders beeindruckt hat mich die enorme Geschwindigkeit. Programme starten praktisch ohne Verzögerung und auch große Dateien lassen sich extrem schnell übertragen.

Beim Gaming merkt man den Unterschied deutlich: Ladezeiten sind spürbar kürzer und das gesamte System fühlt sich insgesamt viel flüssiger an. Auch unter hoher Belastung bleibt die SSD stabil und zuverlässig, ohne Leistungseinbrüche.

Die Verarbeitungsqualität wirkt hochwertig und die SSD macht insgesamt einen sehr robusten Eindruck. Für alle, die auf der Suche nach einer schnellen und zuverlässigen Speicherlösung sind. Egal ob fürs Gaming oder für produktives Arbeiten ist dieses Modell definitiv eine klare Empfehlung.

Preis-Leistung stimmt hier absolut. Würde ich jederzeit wieder kaufen!

I highly recommend the WD Black SN7100 because this SSD is really efficient like crazily power efficient and you will be saving battery life and temperatures and still super fast that's why I used for upgrading my Lenovo Legion Go 2 from Original Samsung 1TB 2242 SSD to New WD Black SN7100 4TB 2280 SSD.

good works fine and brand new

Excellent rapport qualité/prix, mon laptop respire enfin!

amazing storage that is definitely worth every ounce of its price! With astronomically high storage of 2 terabytes you can fit in all of your favourite games and other applications needed without worrying about running of of storage. Very easy to setup and put into the motherboard and has very quick speeds for it to read and write data and so this makes it quick to launch games or any other apps that you may need to use in a short notice. Due to its high speeds, games run technically fast than other types of storage devices leading to much higher fps. It is also high quality so I expect it to last me for many years to come. Finally, it doesn’t get hot at all meaning that it will not fail me when running my pc.