Lenovo 8GB DDR4 SDRAM Memory Module - 4X70G88316. Brand NewIncludes One Year Warranty. . The Lenovo 8GB Memory Module - 4X70G88316 features DDR4 SDRAM memory technology with 2133 MHz memory speed. This 288-pin memory module upgrades your system's standard memory capacity to improve overall system performance. Adding additional memory is a cost-effective way to help boost your system's performance and enhance its ability to run more programs simultaneously.. . 8GB Memory Module - 4X70G88316