FM Sound Unit
FM-70 · Sega · 1987
Why
It was released only in Japan; it’s rare in our markets, so we don’t set a rarity level. released only in the region JP, not in Europe - no lower than Uncommon. Estimate: exact units produced unknown.Details from sources
Mark III add-on with a Yamaha YM2413 (OPLL) FM chip, 9 FM voices, connected to the expansion slot and AV port; first supported by OutRun, about 40 supporting games incl. After Burner and Phantasy Star (sega.jp). Built into the Japanese Master System MK-2000. Using it blocks the SK-1100 (same slot) and the Mark III RGB output; some My Card Mark III games had control problems with it (ja.wikipedia, Sega Retro). Month of release not verified (1987 per Sega Retro).
Prices by market
We collect prices from marketplaces in Ukraine and Europe: once there are at least three listings a week, a median will show up here.
Data source: sega.jp
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