There are only original Samsung chips ensuring the the system can helpBest Antarris top qualityTested and checkedOnly 16CHIP modules, low densitySuitable for models listed in title

You will receive 100% matching memory space for the described equipment + Please note the technical data

4 GB 2x 2 GB RAM for HP Compaq Pavilion Notebook dv2501TX DDR2 667MHz NYPIOJKZH