### UC Appendix Data > Trade Items

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TRADE ITEMS
ID NUM | Item Identifier Number
ITEM NAME | Item Name
PRICE | Base price of item and subject to change due to inflation, availability, etc.
BAY | Determines which cargo bay the item is stored in. There are two cargo bays (CB1, CB2) and two weapons bays (WB1, WB2)
TYPE | Item's Type Class. This value determines the availability of the item by the Class level. A type HT item will be more available on starbases/starstations with a Class level of HT than on one with a Class level of RO. As a result the item will be cheaper on the HT type facility. A blank entry indicates that the availability is normal and the item is not a specialty. If the item's Slevel is 1 (Illegal) this value will also be blank.
|  | AD = Advanced AG = Agriculture HT = High Technology MN = Mineral RO = Robotics |
CARGO DISP | Cargo Displacement is how much cargo space this item requires for storage. Illegal items require more cargo space since they have to be concealed amongst other items.
COMPONENT LEVEL | Component Level is the system for which this item forms a part. This item is required to repair this system. If this is 0, this component is a major component and this system will not function without it. If it is 1 then this item is a minor component and this system will have some functionality without it. This info is used for damage repairs, etc.
|  | A/UPGRADE = Armor Upgrade E/UPGRADE = Engine Upgrade R/UPGRADE = Reactor Upgrade S/UPGRADE = Shield Upgrade | FUEL/CLOAK = Cloak Fuel FUEL/SHIELD = Shield Fuel FUEL/REACTOR = Reactor Fuel
ITEM CLASS | Item Class is used for sorting in TRADCOM trading list
DEFAULT LOADOUT | Default Start value is the player craft startup amounts of this item.
STATION INVENTORY | Station Inventory is the default min amount of this item that a station/base will have in stock, at game startup. During the course of the game, these will fluctuate depending on player and NPC trading patterns.

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ID NUM | ITEM NAME | PRICE | BAY | TYPE | COMPONENT LEVEL | CARGO DISP | ITEM CLASS | DEFAULT LOADOUT | STATION INVENTORY
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