The Samsung 20pcs X 2GB PC3-10600u DDR3 1333Mhz RAM DIMM is a desktop memory kit featuring a total capacity of 40GB spread across 20 modules, each with a capacity of 2GB. This DDR3 SDRAM memory operates at a bus speed of PC3-10600U and has a form factor of DIMM. Made by Samsung in China, this memory kit is designed to upgrade the RAM capacity in desktop computers, providing users with a reliable and high-performance memory solution for their computing needs.