CP 300 was a personal microcomputer produced by Prológica, a computer company located in Brazil, and introduced in 1983.

[1][2][3] It was compatible in software and hardware with the American TRS-80 Model III, and could be considered a domestic and cheaper version of the CP 500, since it was supplied with only one cabinet containing the CPU and a chiclet keyboard.

[2][4] Sound was generated by an internal cabinet speaker with a volume control at the back.

[2] Audio cables were supplied with the computer for connection to a regular tape recorder,[4] that could be operated at 500/1500 baud with remote relay activation.

Additionally, it was possible to connect up to four external 5.25" floppy drives, allowing the machine to run DOS-500 (TRS-DOS compatible).