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Sega Megadrive Console Information

Sega Megadrive / Genesis


Megadrive Version 1


Sega beat Nintendo to the 16-bit market with the megadrive and the machine established itself as being the cool machine to own. Games were notably more violent that the SNES, with less influence over of what was released there are loads of average games amongst the classics.

Megadrive Version 2


Headphone jack removed, A/V port changed to a custom multi out port that provides stereo sound to T.V’s, RF port removed, Different AC adapter used, Push button power switch.A third version genesis 3 was realesed in the US.

Genesis 3


A new handheld version which plugged into a TV was released in the US, came with 2 6 button pads and Sonic Compalation. Unfortunatly incompatible with the 32X and Mega/Sega CD



Wondermega was a combined Megadrive and Mega CD by J.V.C that had improved sound capabilities, MIDI connections, a karaoke function, 2inputs for microphones and SVHS connector. Cost £350 when released.



Americans were lucky enough to receive a handheld version of the Megadrive with a built in 3-Inch colour L.C.D screen that could also be connected to a television.



Multimega is the European version of the CDX combo distributed in USA. It could also be used as a portable CD player.

Mega PC


Amstrad made the MegaPC was a normal PC with the addition of a Megadrive built in. It was a 386 33Mhz with 4Mb of Ram. Later released the Mega Plus with improved specs 486, 33Mhz with 4 Meg RAM.



Only released in japan and a failure there. Basically a Genesis built into a VCR.


Handheld Megadrive that could be rented for use on Japan airlines flights and plugged into the L.C.D television in the armrest.

Laser Active

Laser disc player from Pioneer that could take plug in modules this is the Megadrive and Mega CD games. Other Modules included PC Engine HU Cards and CD's and karaoke.

Megadrive Specs



Motorola M68000 16 bit processorrunning at 7.67Mhz


64 Kb RAM 20 Kb ROM


Palette 512Onscreen colours 64Maximum onscreen sprites 80Resolution 320 x 224


Yamaha YM2612 6 channel FM.Additional 4 channel PSG


separate R.F aerial and R.G.B outputs(AUX connector - Megadrive 1 only),stereo headphone jack (original model only)9 pin EXT port (Early original model only)

Power (UK only)

All: Input 240V~50HzNegative polarityMD1: Output 10V...1.2A (Model No: 1602-05) MD1: Output 9V...850mA (Model No: 3084) MDII: Output 9V...850mA (Model No: 1636-05)

Megadrive Peripherals and Accessories

Mega CD. CD add on which sat underneath a megadrive. Version 1 pictured.

'Menacer' shoulder-mounted light gun. Supported by games such as Terminator.

Megadrive 3D headset.As with the Master system it is possible to get a 3d headset for the Megadrive.

Sega PowerBase Convertor, fits over the top of the original Megadrive / Genesis, and includes a cart slot and card slot for Master System Games. There is also a Megadrive version 2 model called the PowerBase Convertor 2 which doesnt have the card slot.

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