Description : Support AES / EBU , IEC60958 , S / PDIF.Support 5.1 channel , can be connected to 5.1 audio.Up to 48KHZ sampling rate , support 32KHz/44KHz/48KHz digital recording function.Reflow and playback of full-duplex audio streams without the need for a PC built-in sound card.USB2.0 compatible with USB 1.1.Compatible audio device specification v1.0.12Mbps full speed transmission specification.One of the three input terminals is a fiber optic input.3 output terminals and one fiber output terminal.Specification : Material : ABS PlasticSize : 88 x 60 x 20mm/3.46 x 2.36 x 0.79inchPackage Includes : 1 Piece USB External Sound Card1 Piece USB CableNote : Please allow slightly 0~1mm difference due to manual measurement.Color may be slightly different since different monitor.