Floppy Disk Drives
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The beginnings of a list of floppy drives available for the TOS range.
Atari SF354 External Drive - SS/DD 360KB 3.5" Drive
Atari SF314 External Drive - DS/DD 720KB 3.5" Drive
Atari PC554 External Drive - DS/DD 5.25" Drive - Designed for the Atari PC range, it was also compatible with the ST range with a software modification
ST Xformer Cable - Allows you to connect Atari 8bit Disk Drive to Atari ST
Gt-1000 - Indus - 5.25" Floppy Drive for Atari ST
GTS-100 - Indus - 720KB 3.5" Floppy Drive
Cumana CSA354 - 720KB 3.5" Drive
The external floppy drives are connected to ST via special 14-pin connector:
| Pin | Name | Description |
| 1 | RD | Read Data |
| 2 | SIDE0 | Side 0 Select |
| 3 | GND | Ground |
| 4 | INDEX | Index |
| 5 | SEL0 | Drive 0 Select |
| 6 | SEL1 | Drive 1 Select |
| 7 | GND | Ground |
| 8 | MOTOR | Motor On |
| 9 | DIR | Direction In |
| 10 | STEP | Step |
| 11 | WD | Write Data |
| 12 | WG | Write Gate (write enable) |
| 13 | TRK00 | Track 00 |
| 14 | WP | Write Protect |
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