4GB 2X2GB Memory RAM for Compaq Presario CQ60-615DX Laptop Memory Upgrade - Limited Lifetime Warranty from Seifelden Without any debate adding more memory to your computer system or replacing defected memory increases its performance Upgrading your memory is the easy and faster solution to increase the speed and performance of your computer Lifetime Warranty Guarantees with Seifelden Memory with 247 phone and email support 100 Guaranteed Compatible Upgrade for Compaq Presario CQ60-615DX Laptop Notebook Computer