I personally run one of these Western Digital Blue SN550 1TB NVMe PCIe Gen3.0x 4 M.2 drives in my work box and I love it.
We will go ahead and state upfront that we are of the opinion that WD's newest offering is the best overall value proposition currently available. As our testing will demonstrate, the SN550 1TB at 10 cents per gigabyte delivers a user experience that is better than many much more expensive SSDs.
