Synology D4ES01-4G módulo de memoria 4 GB 1 x 4 GB DDR4 ECC

A computer's memory which is directly accessible to the CPU.

How the overall memory of the product is put together, defined by the number of modules and the size.

The type of internal memory such as RAM, GDDR5.

ECC means Error Correction Code, and it is memory that is able to detect and correct some memory errors without user intervention.