The ADATA SX6000 Pro is a decent low-cost NVMe SSD for shoppers looking to save a few dollars on a required component for a new PC build.
The problem with this and every other "low-cost/mainstream /entry-level" SSD is the cost of the flash. The flash memory is the most expensive component. After you factor in the cost of the flash memory, companies only have a little wiggle room with the controller and even the DRAM.
For example, the 1TB SX6000 Pro we tested today sells for right around $109 on Amazon at the same time the company's flagship XPG GAMMIX S11 (a version of the SX8200 Pro that ships with a preinstalled heat sink) sells for just $139. The performance difference between these two parts is significant. If you plan to buy a drive to use in several PC builds over the years then we always recommend the faster drive because you will never regret buying the best available today for such a small monetary increase.
That said, if you are stretching your budget to get an NVMe SSD and the extra $30 is simply too much to spend, the 1TB SX6000 Pro is a good product to look at. The drive gives you 3-bit per cell memory at a 4-bit per cell price (Crucial P1, Intel 660p).
The Bottom Line
The ADATA SX6000 Pro is a low cost SSD designed to give value-focused shoppers an upgrade path to NVMe. The performance is better than we expected for a mainsteam drive.