The multislot PCBs are MV-2F, MV-4F and MV-6F and have most if not all features. If you have a choice, the MV-1 and MV-1F boards are the ones to pick, having stereo support and joystick ports, the MV-1 board is also the only 1 slot board to support for the MV-IC memory board. Revisons : There are 6 revisions of the 1 slot board, MV-1, MV-1A, MV-1B, MV-1C, MV-1F, MV-1FZ. Some later games also came on dedicated boards. PCB Configuration : Available in 1 Slot, 2 Slot, 4 Slot and 6-slot variants. Tile ROM: 128KB on-board + 128KB on cartridges, later cartridges use a portion of sprite ROM that can be larger. Sound ROM: 128KB on-board (only less then 32KB used) + upto 512KB on cartridges Main ROM: 128KB on-board (BIOS) + upto 8MB on cartridges Sprite-strips consist of upto 32 16x16 (4-bit) tiles each. Simple (4-bit) tile layer + 380 zoomable, linkable sprite-strips. Video hardware: 2 palette banks with 4096 (15-bit) colours each. Sound Capability: Stereo up to 56KHz, 4 channels FM (4 operators + LFO) + 3 PSG + 1 noise + 7 4-bit ADPCM
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