In the event that you use a Virtual Private Server for online and offline programs, you may come across a situation where they don't perform correctly because of insufficient physical memory. This could happen if you try to run an app that requires additional RAM than the amount your plan includes, or in case you have too many apps and some of them consume all the memory, leaving no free RAM for the others. Even in the event that you get a powerful plan, this may happen if you add more apps on the web server later on, and since it is possible that you shall need only more physical memory, but not higher CPU speeds or more disk space, we provide a RAM upgrade which you could use without changing your entire plan. Thus, you can pay just for the resources that you need and you'll be able to avoid errors on your websites caused by a lack of memory and the inability of the VPS to load the applications.