In the event that you use a Virtual Private Server for online and offline applications, you may come across a case where they do not function effectively because of insufficient physical memory. This can occur if you try to run an app that requires additional RAM than the amount your package offers, 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 package deal, this could happen if you include more apps on the web server at some point, and since it's possible that you shall need just more physical memory, but not higher CPU speeds or more disk space, we offer a RAM upgrade that you may use without changing your whole plan. This way, you could pay only for the system resources that you really need and you'll be able to avoid errors on your sites caused by deficiency of memory and the inability of the VPS to load the applications.