3.3V 2M x 64/72-Bit 1 BANK SDRAM Module 3.3V 4M x .
HYS64V4220GU-8 - 3.3V 2M x 64/72-Bit 1 BANK SDRAM Module 3.3V 4M x 64/72-Bit 2 BANK SDRAM Module
HYS64V4220GU-10 - 3.3V 2M x 64/72-Bit 1 BANK SDRAM Module 3.3V 4M x 64/72-Bit 2 BANK SDRAM Module
HYS64V4220GU-8-3 - 3.3V 2M x 64/72-Bit 1 BANK SDRAM Module 3.3V 4M x 64/72-Bit 2 BANK SDRAM Module