This is a stero 8 bit sampler that plugs into the parallel port of all Amigas except the A1000. It has sampling rates of 70 Khz mono and 39 Khz Stereo on an A500 and upto 56 Khz stereo on an A1200.
You can also sample direct to disk at upto 25KHz sampling rate, depending on your Amiga.
Finally a bit about the hardware. It has 2 phono inputs for the Audio and a volume control. Inside there is an AD 7576 A-D converter and a TC 4066 CMOS switch plus 6 resistors and 4 capacitors.