ModsJava
Terminal Expansion Overdrive Mod (1.21.1, 1.20.1) – Build Secure Wireless
Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.
⬇ Download

Terminal Expansion Overdrive Mod adds new peripheral blocks and networking adjustments for CC: Tweaked. It balances wireless distance by nerfing over-powered modems while adding multi-block radio towers to handle long-distance communication. The mod also brings tools like card readers, RFID scanners, cryptographic accelerators, and paper scanners to build realistic computer systems.
![]()
Features:
- Radio Towers: Players can build multi-block towers with a base, tower segments, and an antenna for long-range wireless messaging.
- Data Security: The Cryptographic Accelerator peripheral handles AES encryption, Ed25519 and X25519 keys, and SHA string hashing.
- Limits Ender Modem range to twice the distance of a standard wireless modem.
- Restricts cross-dimensional messaging on Ender Modems so coordinates must match within eight blocks.
- Adds network names for Redstone Relays directly into the redstone event feed.
- Allows the NFC Reader to read and write data to NFC cards and RFID badges.
- RFID Scanners pick up and read all nearby badges wirelessly with zero user input.
- Scanners read printed paper items with full support for text colors.
How to Use:
- Place a Radio Tower Base on solid ground.
- Stack one or more Radio Tower Segments directly on top of the base.
- Top off the structure with a Radio Tower Antenna to complete the tower.
- Connect your computer to the tower setup to send signals across large distances.
Screenshots:



Terminal Expansion Overdrive Mod Download Links
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Downloads as 500817.mcaddon
- Download size: 7.5 MB
- Download link checked 23 Sept 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.