The GO-FLIGHT GF-TQ6 Throttle Quadrant standard shipping configuration contains (4) jet thrust levers, (4) thrust reveres levers, a spoiler lever, and a flap handle. All handles are removable. Simply removing two thrust levers and you will have a twin-jet configuration. Included is a "kit" for twin turbo-prop and prop aircraft, allowing the same base unit to be configured for many aircraft types. Each handle can be "assigned" to a specific engine, prop, mixture, spoilers, reversers, flaps, etc., so it can easily be adapted to handle other engine configurations. The GF-TQ6 is USB compatible. Mounting screws are included. The GF-TQ6 requires 4" of vertical space when mounted in the module bay. All GoFlight units are USB compatible. Download the new config software for Flight Simulator X here. Produced by: GoFlight Website: www.goflightinc.com