> ## Knowledge Base Index
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> Use this file to discover available pages before exploring further.
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# How will I know the number of cameras I can install on one server and which licenses should be used on my site?


|| **Question**
How will I know the number of cameras I can install on one server and which licenses should be used on my site?


| **Answer**
The 2 most important factors when calculating the number of cameras per server are the total recording and video streaming BITRATE, and if you need to display the video on the server, then the required display RESOLUTION and expected FRAMERATE is also important to determine the server’s required CPU decoding load.

The number of cameras per site will determine the CathexisVision edition. Lite and Core (48 cameras), Professional (150 cameras), and Premium unlimited cameras.

You can also calculate how many cameras you require by using the Cathexis Design Tool.

You can access the Design Tool Tutorial Videos in the link below :

||| https://downloads.cathexisvideo.com/support/design-tools/

||| https://cathexisvideo.com/support/videos/


**Browse through our useful tutorial videos and manual resources that can be found using the links below:**

||| https://cathexisvideo.com/support/videos/

||| https://cathexisvideo.com/support/documents/