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Atari 520STFM
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== Internal Floppy Drive == The 520STFM includes an internal 3.5-inch double-sided, double-density (DS/DD) floppy drive providing 720 KB formatted capacity. The drive is connected to the WD1772 floppy disk controller via the DMA chip. Common internal drive models include: * Epson SMD-340/360 * Citizen OSDA series * Alps DFxx series An external floppy drive can be connected via the 14-pin DIN port for a second drive (drive B:).
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