Adding more RAM memory to your computer will give you a significant gain in system performance, quicker boot-up & the ability to run multiple programs simultaneously. When you need to increase your RAM memory, get the same memory modules that were installed in your Toshiba computer. Toshiba memory is designed & tested to ensure optimal compatibility with Toshiba portable & All-in-One computers. Based upon your needs & the types of applications you use on your computer, including the configuration of your devices & peripherals, the amount of memory needed will vary. The more power you expect from your computer the more memory you'll need. Installing the maximum amount of memory in the slots will give you the best overall system performance. If you have an older computer, adding some RAM memory can help lengthen the life of your computer before replacing it with a new one.