This is for an unopened matched pair of EMC P-X-MEM1X4G2 4GB PC3-12800E DDR3 ECC server RAM modules. Each module has a capacity of 4GB, providing a total capacity of 8GB for the pair. The memory modules are designed for server use and feature ECC memory for enhanced error correction. The bus speed is PC3-12800 (DDR3-1600), ensuring reliable and efficient performance in server environments. Perfect for businesses or individuals looking to upgrade their server memory capacity with high-quality components from a trusted brand like EMC. Removed from storage inside climate controlled facility. Will ship securely with original boxes inside larger box