Radio terminal high-speed baseband data preprocessing device and data processing system

The invention relates to the technical field of data processing devices, and discloses a radio terminal high-speed baseband data preprocessing device and a data processing system.The radio terminal high-speed baseband data preprocessing device comprises a data preprocessing case and a connecting cable, the connecting cable is inserted into the data preprocessing case, and the data preprocessing case is provided with a connecting and stabilizing assembly used for stabilizing the connecting cable; the connecting and stabilizing assembly comprises clamping sliding blocks, and the clamping sliding blocks are symmetrically connected to the data preprocessing case in a sliding mode with the connecting cable as the reference. Through the arrangement of the rotary lifting assembly, the height of the data preprocessing case is lifted, the expansion surface of the data preprocessing case is rotated to face a user, the user can operate the expansion surface of the data preprocessing case conveniently, hardware maintenan