Upgrade your computer's memory with this Samsung 4GB DDR3 SDRAM module. This DIMM card has a bus speed of PC3-12800 (DDR3-1600) and comes with 1Rx8 ECC. It is compatible with various computers and is perfect for those who need to run multiple applications at once.This memory module has a total capacity of 4GB and a capacity per module of 4GB. It is specifically designed for those who need to improve their computer's performance without worrying about the condition of the sold item. Invest in this DDR3 SDRAM module and experience smooth multitasking and faster processing speeds.