Corsair 4GB (1x 4GB) DDR3 SODIMM Vengeance Black 1.5V (LS)

More memory for more processing power
If you're a serious road warrior or you use your notebook for heavy-duty applications like photo and video editing, your notebook should have as much memory as possible. Adding a 4GB, 8GB or 16GB laptop memory upgrade kit will allow you to multitask between more programs at once and load and edit larger files without having to wait for data to buffer to the drive.