Type 4 could refer to:

• Type 4 asteroid, a type of asteroid
• Type 4 deflector shield, a type of deflector shield
• Type 4 micro-inducer, a tool
• Type 4 phaser, a shuttlecraft phaser.
• Type 4 stealth assault, a method of attack
• Type 4 Tallonian microscanner, a type of microscanner
• Type-four quantum singularity, a spatial distortion.

You may also be looking for:

• Class 4, another series of classifications.

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