16GB (1x 16 GB), DDR4-2666 SDRAM, DIMM, for IPC647E, IPC847E, IPC627E, IPC677E
Siemens 6ES7648-2AL80-0QA0, 16 GB, 1 x 16 GB, DDR4, 2666 MHz
Siemens 6ES7648-2AL80-0QA0. Component for: PC/Server, Internal memory: 16 GB, Memory layout (modules x size): 1 x 16 GB, Internal memory type: DDR4, Memory clock speed: 2666 MHz