In order to have Mobile or Roku Module installed into your server, you will need a Wowza Media Server version 3.5, monthly subscription edition.
Here you can view the Wowza pricing details.
Note: please choose the Wowza Streaming Engine, NOT the Wowza Streaming Cloud.
What are the hardware requirements to run Wowza?
As a minimum we recommend a quad-core system with at least 1 GB of RAM per core. To get the most throughput out of Wowza Media Server software we suggest you use RAID 0 or RAID 10 configurations with at least 2 or more disks in the array. Depending upon your application and load, you may need more or less horsepower.
More details can be seen on Wowza website: https://support.wowza.com/hc