SK Hynix 4GB 1Rx8 PC3L-12800S DDR3L SODIMM RAM module. Designed for efficiency, this low-voltage (1.35V) memory stick reduces power consumption while delivering a brisk 1600MHz clock speed, ensuring your system runs smoother and faster. Say goodbye to frustrating lag and enjoy seamless multitasking, quicker application loading, and an overall more responsive computing experience.