New NVMe SSD not seen by OSes

[Arwen]

@tophneal, yes, 80mm are the most common length. Followed by 42mm, then 100mm.

Western Digital does make a M.2 NVMe line that has the same capacities in 30mm, 42mm & 80mm lengths.
These also have published power specifications, (reasonably good), unlike other brands.

https://www.westerndigital.com/products/...-sn520-ssd


Western Digital has another M.2 NMVe line, (only in 80mm lengths though), with good power specifications;

https://www.westerndigital.com/products/...e-nvme-ssd

Hi Arwen!
I tried to upgrade my T440s with this SSD: WD SN520 NVMe 512 GB M.2 2242 PCI Express 3.0 x2. The motherboard do not recognize the SSD at all. It is recognize the SanDisk 64GB with windows 10. I tried to put the brand new WD SSD on an enclosuer and connect to 2 other pcs, and still not detected. I contacted the seller and he says it must works, so is it the quality of the WD SSD or it might be something else?

My opinion is that the SSD does not work, it's broken. If you bought it from a normal retailer, I'd return it and get a replacement.

Otherwise I have no kowlege of those particular WD SN520 SSDs. Those WD SSDs turned up in my NVMe search for devices with published power specifications. I've not yet bought one.