SSDs and its controllers

Many big brands actually use phison as a conrtoller for their SSD. If not directly using an available controller, they get a controller design from them. They are considered experts in this area.

They also do white-label OEM SSDs. Basically when companies like samsung produce too many NAND chips than they actually want to use to sell (or maybe didnt pass QC). Phison buys the extra stock to be sold as SSD for other brands. So if you see some cheaper CCP brand that you never heard before, likely the product was made by phison.