Western Digital 1TB WD Red SN700 NVMe Internal Solid State Drive SSD for NAS Devices - Gen3 PCIe, M.2 2280, Up to 3,430 MB/s - WDS100T1R0C

This went into a Synology NAS just fine. The Synology OS will throw an uncertified error your way to try and persuade you to buy their own brand...but it will work fine. Hit rate to the SSD is very high, so it is definitely accelerating things in workloads.

With my current project, l am modifying and moving a large amount of data to/from my NAS. This SSD helps keep the transfer rate high.

No problems

It is a good thing these come with a long warranty since I have had my second failure in under a year in my Synology NAS. If you buy these, make sure you purchase a spare if you are concerned with downtime since you will need it. Other than that they seem to do the job.

Great for NAS cache. works fine on my TS-673A Raid 0 cache storage (read only)

Finding a reasonably priced 4TB NVMe that will write a whole TeraByte at nearly full speed is almost impossible. But this one will. The next best alternative costs 50% more as of February 2022.

This drive is really great. I havent tried to benchmark the speeds, because Im just using it in a USB enclosure; so I will never be able to see those speeds anyway. Professionally, I use a lot of virtual machines to perform my work; this drive has a ton of space which is perfect for what Im doing and is large enough to hold all of my documents, manuals, and basically everything else I could ever need for work. Being inside a little USB enclosure, it fits into my bag easily. I expect it to be a strong performer for years to come.

On my home NAS, which gets fairly heavy use, a pair of these gave me a nice R/W speed enhancement via SSD Cache. Very happy with the performance.

Very fast and excellent warranty

4tb of fast reliable storage in a small format. WD red is the premier of storage drives in all its formats.