Resound OPL3 – 4 Channel Sound Card 8-Bit ISA - by TexElec

This card is an 8-bit ISA card which will work in either 8 or 16 bit slots. This card has an OPL3 sound chip, which is backwards compatible with the Adlib / OPL2 as well. The OPL3 is the sole provider of sound.

eBay