Stereo Hub Type: WiSA wireless transmitter / Preamplifier / Streamer • Wi-Fi • WiSA • Bluetooth • 3 x Optic / SPDIF •. 1 x Coax • 1 x USB-B • 1 x RCA Stereo • 1 x TV/ARC (CEC) • 1 x Aux / Optic 3.5mm