In the event that you use a VPS for online and offline programs, you might come across a situation where they don't operate effectively because of insufficient physical memory. This could happen if you try to run a program which requires additional RAM than the amount your package deal comes with, or in case you have too many programs and some of them consume all of the memory, leaving no free RAM for the others. Even when you get a powerful plan, this could happen if you add more programs on the server at some point, and since it's possible that you'll need only more physical memory, but not higher CPU speeds or more disk space, we provide a RAM upgrade that you could use without changing your whole plan. This way, you'll be able to pay only for the system resources that you really need and you'll be able to avoid errors on your websites caused by a lack of memory and the inability of the Virtual Private Server to load the apps.