Enhance your computer's performance with this Samsung 4GB DDR3 SDRAM memory module. This module has a total capacity of 4 GB, with a bus speed of PC3-10600 (DDR3-1333). It is compatible with various laptops and is designed to fit a DIMM form factor, with a height of 1.3in., length of 7.1in., and width of 3in. The model number is M391B5273DH0-CH9, with 240 pins and a voltage of 1.5V. This memory module is an excellent choice for upgrading your computer's memory capacity and speed.