EAS USB Digital Audio Capture Card Converter for MAC OS 10.11 and Windows 10/8.x/7 Systems- Audio Grabber Card for Cassette Tapes to mp3 Converter 3.5mm or R/L audio connector input, Recording audio into PC or mac. Plug and play, no extra power supply. Support Windows systems and Mac systems. Coming with professional audio capture/converting software (Audacity) and online updating. This usb audio digitizer(audio converter) make user easily record live audio or transfer analog to be digital formats such as MP3, WAV. User can save&listen music on MP3 player, computer, portable CD player, or car stereo or home stereo system. Remarks: The Audio Capture DOES NOT support Turntable users.