This is a breakaway section of the cable that allows the cable to split into two components if its suddenly jarred. Whats the middle piece on the Rocksmith Real Tone Cable? On eBay, you can find a wide variety of Real Tone cable packages, which will allow you to play single or multiplayer on this very useful guitar learning software. 'Rocksmith, which is a game/trainer thats produced by UbiSoft is a great way to learn electric guitar in the comfort of your home, but youll need a specific Rocksmith cable in order to play so that the game can recognize your tones. You may be looking to learn how to play guitar. The Definitive Guide for Playing in Style with Your Rocksmith Cable