Upgrade your laptop's performance with the Kingston 4GB PC4-2666 CL19 260-Pin SODIMM KVR26S19S6/4 1.2V DDR4 memory module. Designed to deliver high-speed processing, this single 4GB module is perfect for enhancing your system's capabilities without compromising on reliability. With a bus speed of DDR4-2666, you can expect rapid data transfer and smoother multitasking. The SO-DIMM form factor ensures easy installation into compatible laptops, making it a straightforward upgrade path for your memory-constrained device. Kingston's reputation for quality memory products shines through with this model's consistent performance and durability.