Upgrade your laptop's performance with this genuine Samsung 4GB DDR3 SO-DIMM RAM module. Operating at a speedy 1600MHz (PC3-12800S), it's ideal for enhancing multitasking capabilities and overall system responsiveness. This module is unbuffered and single rank (1Rx8), ensuring compatibility with a wide range of laptops that support DDR3 memory. It has been tested and is in excellent working condition. Comes in anti-static packaging for safe transit.