The product is a lot of 6 mixed Micron 8GB DDR4 RAM modules with a total capacity of 48GB. Each module has a capacity of 8GB and is designed as a DIMM form factor with 288 pins. The memory features include ECC memory and it is registered. The bus speed of the memory is PC4-21300 (DDR4-2666). This RAM is ideal for boosting the performance and speed of any computer system needing a significant increase in memory capacity.