[MasterCyrax]

Как я понял у них разный номинал:

Note this is a list of outputs, inputs vary considerably depending on region. Don't forget to check the adaptor/console in case this list is wrong.

9V, 1A: Sega Master System Model 1 (US)
9V, 1.2A: Sega Genesis Model 1 (US), Sega CD Model 1 (US), Sega CD Model 2 (US)
9.5V, 1.5A: Sega CDX (US)
10V, 0.3A: Genesis 3
10V, 0.85A: Sega Genesis Model 2 (US), Sega Mega Drive Model 2 (EU), Sega 32X (US), Sega Game Gear (US)
10V, 1A: Sega Mega Drive Model 1 (JP)
10V, 1.2A: Sega Mega Drive Model 1 (EU), Sega Mega-CD Model 1 (EU)