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That kit looks authentic to me. C9BLG are just a different speed bin of Micron 16Gbit B-Die (CT40A2G8VA-55M:B). Thaiphoon has no way to recognize the actual speed bin of the ICs used, if that is not programmed in the SPD. Instead it probably uses either the default SPD speed to generate that or some kind of predetermined default value. You would have to ask Vitaliy about that.