If you use a Virtual Private Server for online and offline applications, you might come across a case where they do not function correctly as a result of lack of physical memory. This can happen if you try to run an application that requires more RAM than the amount your plan includes, or in case you have too many apps and some of them consume all of the memory, leaving no free RAM for the others. Even when you get a powerful package, this could happen if you include more apps on the server in the future, and since it's possible that you will require only more physical memory, but not higher Processor speeds or more disk space, we offer a RAM upgrade that you could use without changing your whole plan. Thus, you'll be able to pay only for the system resources which you really need and you can avoid errors on your websites caused by a lack of memory and the inability of the VPS to load the applications.