x64 Interleaved Burst Mode SRAM Module 256KB Secondary Cache Module Designed For Use With Intel Pen-tium CPU based system(用于英特尔奔腾处理器系统56KB二级高速缓冲存储器) 512KB Secondary Cache Module Designed For Use With Intel Pen-tium CPU based system(用于英特尔奔腾处理器系统12KB二级高速缓冲存储器)