Neewer USB EXTERNAL SOUND CARD 3D 5.1 AUDIO ADAPTER for PC USB 3D External Sound Card Compatible with: Digital devices which have an USB port Supported OS: Windows, Windows 98/2000/Me/XP, OS Mac 8.6 above Connector/Ports: 1 USB connector, 1 x 3.5mm audio jack, 1 x 3.5mm mic jack This item is 100% Brand New. Never used. It comes with 3 Months Warranty by Seller.