Upgrade your laptop's performance with the A-Tech 8GB DDR4 PC4-21300 SODIMM memory module, a reliable replacement for the Kingston KVR26S19S6/8. Designed to deliver high-speed performance, this single DDR4 SDRAM module operates at a frequency of 2666MHz, with a bus speed of PC4-21300 (DDR4-2666), ensuring quick data transfer rates.The module's form factor is SO-DIMM, making it suitable for a variety of laptops that accept unbuffered, non-ECC memory. With a voltage of 1.2V, the A-Tech memory RAM is crafted to meet the demands of your computing needs. The lifetime manufacturer warranty provides long-term assurance for your peace of mind.