Stereo TRS - Long
These are the Long Style Jacks needed for guitars with a deep routed jack. They are Stereo and have 3 connectors (Tip/Ring/Sleeve aka "TRS"). These are required for many guitar electronics upgrades, such as adding Active Pickups or other Active Electronics that run off a battery. It can also be used to double your guitar's signal (with the proper cables and splitters, you can run your guitar to 2 Amps at once).