The product is a brand new lot of 58 Kingston DDR5 16GB RDIMM ECC 4800MHz memory modules. With a total capacity of 864GB spread across 4 modules, each module has a capacity of 16GB. These high-performance memory modules are designed for desktop computers and servers that require reliable and fast memory technology. DDR5 RDIMM memory offers higher data transfer speeds and improved stability, making it a great choice for demanding computing tasks.