Hardware Canucks tried the AData Premier SP550 240GB SSD
A quote from the article:
The SSD segment has seen a good amount of contraction over the last two years and that trend has continued as of late. With drive technology hitting the limits of SATA 6Gbps, SATA Express being treated like a leper by most companies and the expensive NVMe just starting to make inroads, some may even say the mainstream and slightly higher end segments are experiencing a bit of stagnation. This has actually led to a bit of a renaissance within more affordable price brackets where buyers can now combine very aggressive SSD cost with capacity and a good amount of performance as well.AData Premier SP550 240GB SSD Review @ Hardware Canucks
AData has taken the present state of the SSD market in stride by putting a focus upon delivering that optimal blend of features and pricing which buyers are now accustomed to looking for. A little while ago we looked at the first phase of their multi-pronged approach: the XPG SX930. That drive featured excellent NAND, very good performance and backed it up with a unique controller solution. Unfortunately we found it a bit expensive in comparison to some of its competitors like Crucial's excellent MX200.