The Samsung 64GB (2x32GB) DDR4 260-Pin SO-DIMM PC4-2666V Unbuffered memory modules are high-performance RAM modules designed for computers and laptops. With a total capacity of 64GB split into two 32GB modules, these DDR4 SDRAM modules provide fast data transfer speeds at a bus speed of PC4-21300 (DDR4-2666). The unbuffered memory feature ensures efficient memory access and performance, making them a reliable choice for enhancing the speed and responsiveness of your system. Ideal for those looking to upgrade their computer's memory capacity with reliable and reputable components from Samsung.