In the picture above, you can see the empty mod slots with their polarities, while the bottom side shows you the compatible mods from your inventory that can be equipped. This example uses an Excalibur Warframe, showing a total of 60 mod points that are available to spend on upgrades. Select UPGRADE and you will see the mod screen: You will see three buttons next to the item: To add mods to your equipment, go to your Arsenal and select the item you want to equip with mods.
There are four different kinds of mods in Warframe:
Warframe's Mod System is based on cards that can be found while you play the game.
