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The Atari 520ST was released in January of 1985 and was retailed for $599 ($1,431 in 2018 money) and had a Motorola 68000 at 8 MHz with 512K of RAM. ====[[wikipedia:Atari_ST#Release|Atari 260ST]]====The Atari 260ST had a limited release in Europe which was a 520ST but with 256KB of RAM. ====[[wikipedia:Atari_ST#Release|Atari 520STM]]==== The Atari 520STM was released in late 1985 and added RF output. ====[[wikipedia:Atari_ST#STE_models|Atari 520STE]]====The Atari 520STE was released in late '89 and had the OS burned onto the ROM and had enhanced joystick ports.