The product is a lot of four Samsung 8GB DDR3 1600 240pin UDIMM RAM modules with a total capacity of 32GB. Each module has a capacity of 8GB and is designed in a DIMM form factor with 240 pins. The modules have a bus speed of PC3-12800 (DDR3-1600) and dimensions of 2.75 inches in height, 6.69 inches in length, and 3.93 inches in width. This RAM is compatible with computers and networking devices that require DDR3 SDRAM memory technology.