The Micron 4 GB SO-DIMM Memory Card (MTA4ATF51264HZ-3G2J1) is a high-quality DDR4 SDRAM memory module designed for use in various computing devices. With a total capacity of 4 GB and ECC memory features, this memory card is ideal for enhancing the performance and efficiency of your system. Featuring a compact SO-DIMM form factor and a lifetime manufacturer warranty, this memory card is a reliable choice for expanding your computer's memory capacity. The 260 pins make it compatible with a wide range of devices, making it a versatile option for improving your system's speed and responsiveness.