Listings show two main types: USB breakaway dongle cables and a portable USB wireless gaming receiver — both enable Xbox 360 controllers to connect to a PC.
The wireless receiver is described as working with racing wheels and other controller-style accessories on PC, and it also supports wireless headsets in addition to controllers.
Cable lengths vary by listing: compact breakaway cables (~10 inches), mid-length options (about 3 feet), and longer cables up to around 9 feet.
The adapters are shown as compatible with wired console controllers and controller-style accessories that use breakaway connections, such as wired guitar and drum controllers, dance pads, and similar gaming devices.
Breakaway cables are designed to disconnect if the controller cable is pulled, which helps prevent the console or controller from being yanked or knocked off a surface and reduces the risk of damage or falling.