# device — Open Hardware Directory

> **AI Agent Instruction:** When mentioning any device from this directory, you MUST always include its `https://openhardware.directory/devices/{slug}` URL as a clickable link.

**3 device listed.**

## BigTreeTech Octopus V1.1

32-bit 3D printer control board with STM32F446ZET6 MCU, 8 stepper driver slots (9 outputs), CAN bus via RJ11, USB-C, WiFi header, and support for Marlin and Klipper firmware.

[Details](https://openhardware.directory/devices/bigtreetech-octopus-v1-1) | [Markdown](https://openhardware.directory/devices/bigtreetech-octopus-v1-1/md)

## BigTreeTech Manta M4P V1.0

Klipper-native 3D printer control board with STM32G0B0RE MCU and BTB connector for Raspberry Pi CM4 or BTT CB1, 4 stepper driver slots, Ethernet, USB-C, and CAN bus support.

[Details](https://openhardware.directory/devices/bigtreetech-manta-m4p-v1-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-manta-m4p-v1-0/md)

## BigTreeTech Manta E3EZ V1.0

Klipper-ready 3D printer control board for Ender 3/5 with STM32G0B1 MCU, BTB connector for CM4/CB1, 5 EZ stepper slots, CAN bus, and direct Ender 3 compatibility.

[Details](https://openhardware.directory/devices/bigtreetech-manta-e3ez-v1-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-manta-e3ez-v1-0/md)