Lenovo 16GB DDR4 3200MHz ECC RDIMM Memory Lenovo 4X71B67860 memory module 16 GB 1 x 16 GB DDR4 3200 MHz: The ThinkPad 16GB DDR4 3200MHz RDIMM Memory upgrades the standard memory capacity in select PCs, improving performance and enhancing the PC's ability to run more programs simultaneously. Note: The content above is generic for the series. For Correct info about this particular model, please refer to Specifications section.