Lenovo 4X77A88054, 128 GB, 1 x 128 GB, DDR5, 5600 MHz, 288-pin DIMM Lenovo 4X77A88054. Component for: Server, Internal memory: 128 GB, Memory layout (modules x size): 1 x 128 GB, Internal memory type: DDR5, Memory clock speed: 5600 MHz, Memory form factor: 288-pin DIMM