The product is a lot of 16 Hynix 64GB PC4-3200AA DDR4 Server RAM modules, specifically the model HMAA8GR7CJR4N-XN. Each module has a total capacity of 64GB and is of the form factor RDIMM. These DDR4 SDRAM modules are ECC memory, registered, and have a bus speed of PC4-25600 (DDR4-3200). They are designed for servers and enterprise networking systems, originating from Korea, South. Ideal for high-performance computing and networking applications requiring reliable and high-capacity memory modules.