The Roland SCC-1 is an 8-bit half-size ISA sound card released in 1992 with an MSRP of $499 and was the first sound card by Roland to support the GS extension. It is not perfectly General MIDI compatible, however, because it incorrectly interprets a GM reset as a GS reset.
Even though the card is 8-bit, the tone generator is not. Its output is 16-bit at 44.1 kHz. It uses the same sound engine as the SC-55 Sound Canvas and contains 317 different tones and 9 different drum sets and can generate up to 24 simultaneous notes for up to 16 MIDI parts.
There were two later variations that upgraded the tones from 317 to 354. They were the SCC-1A and SCC-1B, both the same hardware, but sold with different sofware bundles.