The Vintage ISA Sound Card Avance Logic A-Gold MA5ASound Wavetable 16bit is a classic plug-in card sound card designed by Asound. It features stereo channels and various audio ports including serial (RS-232) I/O, 3.5mm output, and 3.5mm input. This unit is compatible with an ISA port and offers high-quality sound reproduction for a retro computing experience. Perfect for those looking to enhance the audio capabilities of their vintage computer setup, this sound card delivers on 16-bit sound quality and wavetable functionality.