Is your laptop feeling sluggish? A RAM upgrade can make a huge difference! This is genuine Crucial memory – available as a single 4GB or 8GB module in DDR3 or DDR3L. Speeds include 1333MHz (PC3-10600), 1600MHz (PC3-12800), or 1866MHz (PC3-14900). It's the SO-DIMM form factor with 204 pins, so it fits most laptops and small-form PCs. These are open-box or system-pull sticks, but they're 100% tested and fully functional. No ECC, unbuffered – just plug-and-play performance. Comes with a lifetime warranty, so you can install with confidence. Whether you're upgrading an older laptop for office work, school, or light gaming, more RAM means smoother multitasking and faster load times. Check your laptop's specs to see what speed and capacity it supports. Installation is usually just a few screws away. Don't let a slow machine frustrate you – give it a boost with reliable Crucial memory. It's one of the easiest and most cost-effective upgrades you can do!