The hardware of different SB16 cards can vary significantly. For example the earliest versions used a Yamaha OPL3 chip and later ones used software emulation.

The hardware of different SB16 cards can vary significantly. For example the earliest versions used a Yamaha OPL3 chip and later ones used software emulation. This is why on ebay SB16 listings generally contain the specific board model number and not just Sound Blaster 16. Differing models have differing values. Some fairly cheap and rarer models more expensive.