The product is a lot of 4 Micron 8GB DDR3-1333 ECC Unbuffered UDIMM RAM modules, each with a capacity of 2GB. These DIMM modules have a total capacity of 8GB and are designed for use in computers and networking devices. The modules are compatible with DDR3 SDRAM memory technology and have a bus speed of PC3L-10600E. With a total of 4 modules included in the lot, this product provides reliable and high-performance memory capacity for various computing and networking applications.