How much memory comes in this?

Hello, Thank you for contacting us in regards to your question. This is a barebones system and you will have to purchase the RAM separately. Here is what this system can support up to: Memory Supported Max Memory Supported Supports up to 256GB DDR4 ECC RDIMM Supports up to 64GB DDR4 ECC / non-ECC UDIMM Memory Type Supported 2400 / 2133 / 1866 MHz ECC DDR4 ECC RDIMM and ECC / Non-ECC UDIMM Thank you, -Hutch, Newegg Support