An Item Card is how equipment information is displayed in game. All items in the game which are equip-able by the player use the item card to display pertinent information and stats.
In the PC version of the game, players can easily export a screen shot of these. Forum:Item Card Export
Each Item Card shares the same basic layout.
Note that any weapon statistics displayed on an item card already take into account any bonuses listed on that card. A weapon with an item card that shows Damage 751 and +53% Damage has a damage stat of 751, not 1149.