BIGTREETECH
SKR 3 EZ
Best high-performance motherboard for enthusiasts upgrading their 3D printer's processing power.
The BIGTREETECH BTT SKR 3 EZ V1.0 is an advanced 32-bit 3D printer motherboard designed for enhanced performance and compatibility. Featuring a powerful ARM Cortex-M7 STM32H723VGT6 main control chip with a 550MHz clock speed, it offers significantly improved processing capabilities. This motherboard supports both EZ series and TMC series drivers, providing flexibility for various setups. It includes essential features like print resume, filament runout detection, and support for BLTouch and RGB lighting. The design incorporates a protection circuit for thermistors and uses high-performance MOSFETs to minimize heat generation, ensuring reliable operation.
$79.99
Owner Satisfaction
4.6
/ 5
Category Rank
40
/ 532
#40 in 3D Printer Accessories
Price vs Category Average
+91%
Above average
Main Control Chip
327236327
/ STMHVGT (-bit ARM Cortex-M)
Who it's for
- Beginners wanting to avoid tedious wiring and pin alignment
- Power users running Klipper for high-speed printing
- Custom builders requiring extensive connectivity for complex setups
Who should skip it
- Budget-conscious makers preferring standard, affordable stepper drivers
- Novices intimidated by advanced firmware compilation and configuration
- Owners of compact printers with limited internal mounting space
Performance breakdown
Processing Power
The 550MHz Cortex-M7 chip handles complex calculations with remarkable speed.
Driver Compatibility
Seamlessly supports both modern EZ and classic TMC driver series.
Thermal Efficiency
High-performance MOSFETs keep heat levels low during extended print sessions.
Firmware Flexibility
SD card updates and DFU support make configuration straightforward and fast.
Safety Integration
Dedicated thermistor protection circuits provide essential peace of mind during operation.
Display Versatility
Broad compatibility with serial, SPI, and LCD screens offers great setup freedom.
Key Specs
Main Control Chip
STM32H723VGT6 (32-bit ARM Cortex-M7)
Main Frequency
550MHz
Power Chip
TPS5450-5A
Power Input
DC12/24V
Max Output Current
5A (peak 6A)
Supports DFU bootloader updates
Replaceable fuse
On-board DIAG function pins
Features
- Significantly improved performance with a 550MHz main control chip.
- Compatible with both EZ series and TMC series drivers.
- Supports essential 3D printing functions like resume printing and filament runout detection.
- Includes a protection circuit for thermistors to prevent chip damage.
- Supports various screen types including serial, SPI, and LCD displays.
- Easy firmware updates via SD card.
- On-board DIAG function for simplified driver configuration.
- High-performance MOSFETs for reduced heat generation.
What customers say
The BIGTREETECH SKR 3 EZ earns high praise primarily for its exceptional ease of use and simplified installation. The integrated TMC2209 EZ drivers eliminate the complexity of external stepper drivers, significantly reducing wiring clutter. Users appreciate this straightforward setup, which pairs well with the board's robust performance from the STM32H743VIT6 chip, ideal for running advanced firmware like Klipper for faster, quieter prints. Reviewers consistently note the high quality of components and excellent thermal management, suggesting improved reliability. While configuration still requires some technical skill, the physical setup is remarkably simple. Customers feel the convenience and reliability justify the slightly higher cost, making this board an excellent upgrade for users seeking powerful performance without installation headaches.
Know before you buy
Yes, the board is designed for flexibility and supports both the newer EZ series drivers and standard TMC series drivers.
Yes, the SKR 3 EZ includes dedicated ports for BLTouch and other common bed leveling probes, making it easy to integrate into your setup.
The board features a dedicated protection circuit that prevents high-voltage shorts from damaging the main control chip if a thermistor wire accidentally touches the heater block.
Not at all. You can update the firmware easily by placing the compiled file onto an SD card and restarting the printer, or by using the DFU bootloader method.
The board is highly versatile and supports a wide range of displays, including serial, SPI, and standard LCD screens.
The board features an on-board DIAG function, which simplifies the configuration process for sensorless homing by allowing you to toggle the feature using jumpers.
Still have a question?
Ask Hayley anything about this product before you decide.