Not-So-Solid State: SSD Makers Swap Parts Without Telling Us
"SM2262EN = SM2262ENG, and SM2262G is a updated version of the SM2262EN. According to SMI, the reasons why there are slightly different on the naming, just because the timing of releasing the controllers are different and also because the controllers were designed for different customers. For SM2262G, SMI designed this model for some specific customer who emphasized on the durability, therefore, the switch to the G model was to provide longer SSD life.大意是說「晶片名稱小差異是釋出時間不同和針對不同客戶，換成G型號強化耐久。不保證會用哪個料但會保證效能會在規範內。」
We don't guarantee the controllers we would use among the three (SM2262EN / SM2262ENG / SM2262G) or NAND brand on our SX8200 PRO, but we do guarantee that every SX8200 PRO will perform to spec within the regular variations since the drives have been tested stringently."