Table of Contents

AE2 Mechanics: Channels

Author Applied Energistics Team
Category Storage & Automation

Applied Energistics 2's ME Networks require Channels to support devices that use networked storage or other network services. Think of channels like USB cables for your devices. A computer only has so many USB ports, and can only support so many devices at once.

Most machines, full-block devices, and standard cables can pass up to 8 channels. Dense cables can carry up to 32 channels. The only other devices capable of transmitting 32 are ME P2P Tunnel and the Quantum Network Bridge.

Each device that uses a channel removes one “wire” from the bundle, leaving fewer wires available further down the line.


Cable Limits

Cable Type Channel Capacity Notes
Glass / Covered 8 Standard throughput
Smart Cable 8 Shows channel usage
Dense Cable 32 Dense or dense smart

Smart cables visually display how many channels are flowing through them.


Power Consumption

Channels consume 1⁄128 AE/t per node they traverse. In some cases, adding a ME Controller can actually *decrease* power consumption because of how channels get reallocated.


Channel Routing

When using a ME Controller, channels route in 3 steps:

1. Shortest path through adjacent machines to the nearest normal cable (glass, covered, smart). 2. Shortest path through normal cable to the nearest dense cable (dense or dense smart). 3. Shortest path through dense cable to the ME Controller.

If the shortest path is maxed out, some devices will not receive channels. Use colored cables, cable anchors, and tunnels to force channels down specific paths.

Networks should be treelike or bushlike. Loops and ambiguous paths cause problems.


Ad-Hoc Networks

A network without a ME Controller is considered Ad-Hoc.

* Supports up to 8 channel-using devices. * If you exceed 8 devices, all channel-using devices shut down. * Smart cables show network-wide channel count, not per-cable usage. * Each device uses 1 channel network-wide. * Controller-based routing is different, as it allocates channels based on shortest route.


Design Guidelines

Bad Example: Immediately exiting the controller to the right, the drive bottlenecks the path to 8 channels because drives act like normal cables. Without smart cables, you cannot see usage. Channels run out quickly, leaving later devices unpowered.

Good Example: Use dense cables branching from the controller, then regular cables branching from those, with devices in clusters of 8 or fewer. This ensures full channel distribution without bottlenecks.


Channel Modes

Starting in AE2 10.0.0 for Minecraft 1.18, channels can be configured with different modes.

Operators can use commands:

Changing modes will reboot all existing grids.

Setting Description
default Standard channel rules (as described above).
x2 Double capacity (16 on normal cable, 64 on dense, 16 on ad-hoc).
x3 Triple capacity (24 on normal cable, 92 on dense, 24 on ad-hoc).
x4 Quadruple capacity (32 on normal cable, 128 on dense, 32 on ad-hoc).
infinite Removes all channel restrictions. Controllers still reduce power usage.

Smart cables in infinite mode only toggle between off (0 channels) and on (1+ channels).