Ha-Info U2 PLUS USB Sound Card with Headphones Amplifier and SPDIF operated by TPA6120A2 Headphone amplifier chip Enter a 24Bit/96K USB sound card Coaxial digital output can be used to connect an external DAC with digital input AV receiver Built-in TI TPA6120 HIFI headphone amplifier, headphones can be driven 32-600 USB interface for a variety of computer operating systems, Plug and Play, no additional driver installation Mini palm-sized body with brushed aluminum oxide shell, texture class