Feature: 1. Sound: This 7.1 sound card supports for AES/EBUIEC60958S/PDIF and true hardware 7.1 channel output, allowing you to enjoy sound with up to 48KHz sampling rates and support for 32KHz/44KHz/48KHz digital recording. 2. Easy to Use: With support for Win98/ME/2000/XP/VISTA/MACOS91 (2 channels on MAC only), Usb 2.0 sound card is easy to install and use for full-duplex audio streaming playback and recording without the need for a built-in PC sound card. 3. Versatile Connectivity: Equipped with 4 input terminals (including one optical fiber input and two MIC inputs), 5 output terminals, and 1 optical fiber output terminal, USB audio adapter supports a wide range of audio devices and equipment specifications. 4. Fast USB Transfer Speeds: Usb external stereo sound card is compatible with USB 2.0 and downward compatible with USB 1.1, supporting high-speed USB transfer up to 12Mbps. 5. Professional-grade Features: With its advanced features and specifications, 7.1 channel usb soundbox is perfect for professional and home users who demand audio recording and playback capabilities for their projects and entertainment needs. Specification: Model Number: Sound Cards Interface: USB Support channel: 7.1 channel Installation method: external Colour: Black Material: plastic Product size: 13x6.3x2.4cm/ 5.12 x 2.48 x 0.94inch Product weight: 90g Package Contents: 1 * Sound Card