Compatible with modified G923, G25, G27, G29 manual gear shifters, Thrustmaster TH8A gear shifter, and Fanatec SQ, PXN A10 gear shifters. Designed for use with ETS2 and ATS games only. Features flexible high and low gear switching. The gearshift knob includes a handball-style head that functions as a switch to quickly toggle between high and low gears. Includes two switch inputs and a customizable button, supporting up to 18 gears with user-defined settings. Widely compatible with various shifter models. The 11.5mm adapter plug is pre-installed and secured with a hexagon screw to fit different brand shifters, including Logitech G25, G27, G29, G920; Thrustmaster TH8A; Fanatec SQ; PXN A10; and other shifters with a shaft diameter under 11.5mm. Equipped with an independent USB cable for plug-and-play functionality. Easy to install—no drivers required. Connect directly to a USB port on a PC. Not recommended for use through a steering wheel hub. Supports Windows 7, Windows 10, and later versions. Features a realistic driver-style ball knob with excellent tactile feel and durable construction. Designed for gamers using modified G25, G27, G29, or TH8A shifters for ETS2 and ATS. Connector made of aluminum alloy for durability and broad compatibility. Fits 12mm, 10mm, and 8mm shifter shafts. Compatible with mainstream shifters from Logitech, Thrustmaster, Fanatec, Kraton, Laishi, and other brands. Color: Black Material: Plastic and metal Package Contents: 1 x USB Shifter Knob Kit Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement tolerance is +/- 1-3 cm.