---
navigation:
  parent: items-blocks-machines/items-blocks-machines-index.md
  title: Interface
  icon: interface
  position: 210
categories:
- devices
item_ids:
- ae2:interface
- ae2:cable_interface
---

# The Interface

<Row gap="20">
<BlockImage id="interface" scale="8" />
<GameScene zoom="8" background="transparent">
  <ImportStructure src="../assets/blocks/cable_interface.snbt" />
</GameScene>
</Row>

Interfaces act like a small chest and fluid tank that fills itself from and empties to [network storage](../ae2-mechanics/import-export-storage.md)
depending on what you set it to keep a stock of in its slots. It tries to complete this in a single gametick, so it can fill itself with
or empty itself from up to 9 stacks per gametick, making it a fast method of import or export if you have fast item pipes.

Another useful trait is that while most fluid tanks can only store 1 type of fluid, interfaces can store up to 9, as well as items.
They're essentially just chests/multi-fluid tanks with some extra functionality, and you can prevent that extra functionality by keeping
them disconnected from any networks.
Thus, they are useful in some niche cases where you want to store a small amount of a bunch of different stuff.

## How An Interface Works Internally

As previously stated, an interface is essentially a chest/tank with some super duper <ItemLink id="import_bus" />ses and
<ItemLink id="export_bus" />ses attached, with a bunch of <ItemLink id="level_emitter" />s.

<GameScene zoom="3" interactive={true}>
  <ImportStructure src="../assets/assemblies/interface_internals.snbt" />

  <BoxAnnotation color="#dddddd" min="1.3 0.3 1.3" max="9.7 1 1.7">
        A bunch of level emitters to control the requested stocking quantity
        <GameScene zoom="4" background="transparent">
        <ImportStructure src="../assets/blocks/level_emitter.snbt" />
        </GameScene>
  </BoxAnnotation>

  <BoxAnnotation color="#dddddd" min="1.3 4 1.3" max="9.7 4.7 1.7">
        A bunch of level emitters to control the requested stocking quantity
        <GameScene zoom="4" background="transparent">
        <ImportStructure src="../assets/blocks/level_emitter.snbt" />
        </GameScene>
  </BoxAnnotation>

  <BoxAnnotation color="#dddddd" min="1.3 1.3 1.3" max="9.7 2 1.7">
        A bunch of super duper import busses that can transfer 1 stack per gametick
        <GameScene zoom="4" background="transparent">
        <ImportStructure src="../assets/blocks/import_bus.snbt" />
        </GameScene>
  </BoxAnnotation>

  <BoxAnnotation color="#dddddd" min="1.3 3 1.3" max="9.7 3.7 1.7">
        A bunch of super duper export busses that can transfer 1 stack per gametick
        <GameScene zoom="4" background="transparent">
        <ImportStructure src="../assets/blocks/export_bus.snbt" />
        </GameScene>
  </BoxAnnotation>

  <BoxAnnotation color="#dddddd" min="1 2 1" max="10 3 2">
        9 separate internal slots
  </BoxAnnotation>

  <IsometricCamera yaw="195" pitch="15" />
</GameScene>

## Special Interactions

Interfaces also have a few special functionalities with other AE2 [devices](../ae2-mechanics/devices.md):

A <ItemLink id="storage_bus" /> on an unconfigured interface will present the entirety of the [network storage](../ae2-mechanics/import-export-storage.md)
of its network to the storage bus' network, as if the interface's network was one big chest the storage bus was placed on.
Setting an item to be stocked in the interface's filter slots disables this.

<GameScene zoom="6" interactive={true}>
  <ImportStructure src="../assets/assemblies/interface_storage.snbt" />
  <IsometricCamera yaw="195" pitch="30" />
</GameScene>

Pattern providers have a special interaction with interfaces on [subnets](../ae2-mechanics/subnetworks.md): if the interface is unconfigured
the provider will skip the interface entirely and push directly to that subnet's [storage](../ae2-mechanics/import-export-storage.md),
skipping the interface and not filling it with recipe batches, and more importantly, not inserting the next batch until there's space in storage.

<GameScene zoom="6" background="transparent">
<ImportStructure src="../assets/assemblies/provider_interface_storage.snbt" />

<BoxAnnotation color="#dddddd" min="2.7 0 1" max="3 1 2">
        Interface (must be flat, not fullblock)
  </BoxAnnotation>

<BoxAnnotation color="#dddddd" min="1 0 0" max="1.3 1 4">
        Storage Busses
  </BoxAnnotation>

<BoxAnnotation color="#dddddd" min="0 0 0" max="1 1 4">
        Places you want to pattern-provide to (multiple machines, or multiple faces of 1 machine)
  </BoxAnnotation>

<IsometricCamera yaw="185" pitch="30" />
</GameScene>

## Variants

Interfaces come in 2 different variants: normal and flat/[subpart](../ae2-mechanics/cable-subparts.md). This affects which specific sides their inventories can be accessed
from and that they provide a network connection to.

*   Normal interfaces allow things to push to, pull from, and access their inventory from all sides and, like most AE2 machines, act
    like a cable providing network connection to all sides.

*   Flat interfaces are [cable subparts](../ae2-mechanics/cable-subparts.md), and so multiple can be placed on the same cable, allowing for compact setups.
    They allow things to push to, pull from, and access their inventory from their face but do not provide a network connection on their face.

Interfaces can be swapped between normal and flat in a crafting grid.

## Settings

The upper slots in the interface determine what the interface is set to stock inside itself. When something is placed in
them or dragged from JEI/REI, a wrench appears that lets you set the quantity.

Right-click with a fluid container (like a bucket or fluid tank) to set that fluid as a filter instead of the bucket or tank item.

When you set a slot to stocking mode, it will also prevent external machines from inserting anything else into that slot.

## Upgrades

The interface supports the following [upgrades](upgrade_cards.md):

*   <ItemLink id="fuzzy_card" /> lets the bus filter by damage level and/or ignore item NBT
*   <ItemLink id="crafting_card" /> lets the interface send crafting requests to your [autocrafting](../ae2-mechanics/autocrafting.md)
    system to get the items it desires. It will pull the items from storage if possible, before making a request
    for a new item to be crafted.

## Priority

Priorities can be set by clicking the wrench in the top-right of the GUI. Interfaces with higher priority will get their items
before those with lower priority,

## Recipes

<Recipe id="network/blocks/interfaces_interface" />

<RecipeFor id="cable_interface" />