HYS64/72D64000/128020GU-7/8-A Unbuffered DDR-I SDR.
HYS64D128020GU-8-A - 2.5 V 184-pin Unbuffered DDR-I SDRAM Modules
HYS64D128020GU-7-A - 2.5 V 184-pin Unbuffered DDR-I SDRAM Modules