BIGTREETECH BTT Octopus Max EZ for 3D Printer


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SKU: 1604095
  1. Onboard BOOT button to enable DFU mode to update the bootloader
  2. The thermistor circuit is protected to prevent MCU damage from shorted heated bed and heater cartridge connections
  3. Selectable voltage (24V, 12V, 5V) for CNC fan, no more need for external stepdown thus preventing board damage from user error
  4. Upgraded with eFuse protection, which response faster with strong protection, effectively protecting the motherboard from being damaged caused by short circuits, over-current, electric spark, etc
  5. Support power loss recovery, filament runout sensor, CAN, auto power-off, BL Touch, RGB, etc
  6. Replaceable fuse for easy maintenance

 8,467.00 (Incl. GST)

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Category: 3D Printer Display and Controller

BIGTREETECH Octopus MAX EZ, a 32-bit motherboard, is an upgraded version of Octopus Pro developed by the 3D printing team of BTT Its self-developed stepper motor sockets enhance safety and user experience, and it adds a series of features that Octopus Pro does not have, greatly enhancing its DIY capabilities. BIGTREETECH’s Octopus Max EZ is a 32-bit motherboard with many interfaces for versatile upgrade possibilities. The main board is compatible with Klipper and Marlin as well as with a Raspberry Pi.

BIGTREETECH BTT Octopus Max EZ meets the normal operating requirements, but besides these, it also supports various improvements such as upgrading to a dual extruder or running the EZ-MAX31865. It also serves as a replacement in case of a burned-out driver port. The main board is equipped with fail-safe EZ drivers, and has a protected chip and a pinless design, making it extra safe to use.The 32-bit 550MHz ARM Cortex-M7 STM32H723ZET6 microcontroller is compatible with both Marlin and Klipper.

Note: Refer to Manual in the ATTACHMENTS section for more info. regd. the product.


  1. 10 driver ports for versatile applications
  2. PS5450-5A enables direct power supply with a Raspberry Pi
  3. eFuse for a fast response and precise protection
  4. CNC fan voltage is freely selectable between 5, 12 and 24 V
  5. 3 x 4 pins fan port designed for water cooling
  6. 550MHz ARM Cortex-M7 STM32H723ZET6

Package Includes:

1 x BIGTREETECH BTT Octopus Max EZ for 3D Printer

1 x DIY Crimp Terminal Set

20 x 2.54mm Black Jumper

20 x 2.0mm Black Jumper

1 x 50cm USB2.0 Type-C Data Cable

SKU: 1604095 Category:
Item Type:

Controller Board Only

Model Series:

BTT Octopus Series


EZ Specific Driver Series



MCU Type

ARM Cortex-M7 STM32H723ZET6 550 MHz

Input Voltage (V)

DC12V or DC24V

Logic Voltage (V)

DC3.3 V

PC Communication Interface

USB Type-C

Expansion interfaces

CAN, FWS, IND-Probe, Probe, PS-ON, PWRDET, RGB x 2, Servos, SPI, TFT, WIFI

Compatible Motor Driver

ET2225, EZ2130, EZ2208, EZ2209, EZ2226, EZ5160

Driver Working Mode


Motor driver interface

Motor1, Motor10, Motor2, Motor3, Motor4, Motor5, Motor6, Motor7, Motor8, Motor9

Dimensions (mm)

160 x 100 x 18

Weight (g):


Shipping Weight 0.3 kg
Shipping Dimensions 21 × 14 × 5 cm
1 Year Warranty

This item is covered with a supplier warranty of 1 year from the time of delivery against manufacturing defects only. In case of manufacturing defects or issues, we will replace the part after warranty confirmation by our technical team, but we won’t offer refunds or replace the entire product.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China