Features: Boost Your 3D Printing Efficiency with Manta E3EZ + CB1 eMMC Kit.This kit is designed for Ender-3, Ender-3 Ender-3 Pro, BIQU-B1 3D Printers,high-performance This kit includes Manta E3EZ silent control board, CB1 eMMC core control board, which perfect fit for ender-3 series 3d printer to run klipper firmware. Manta E3EZ adopts ARM Cortex-M0+series STM32G0B1RE master- chip with 32-bit main frequency of 64MHz; The maximum- power supply of the motor is 56V; The Manta E3EZ main control board and core board use BTB- connection, which can be perfectly paired- with the CB1 core board.eCB1 eMMC adds eMMC5.1 technology, with a read speed of 300MB/s and a write speed of 200MB/s; The storage method- is more stable, and only 0.5w low power consumption. The CB1 core board is equipped with quad- core 64 bit ARM Cortex-A53 @ 1.5GHz processor, 1GB DDR3 memory chip; Onboard-100M Ethernet- interface and supports WIFI transmission. Specifications: Chip:E3EZ adopts ARM Cortex-M0+series STM32G0B1RE master- chip Frequency :with 32-bit main frequency of 64MHz The Maximum- Power Supply Of The Motor: 56V Processor: CB1 is equipped with quad-core 64bit ARM- Cortex-A53 1.5GHz processor, 1GB DDR3 memory chip; Onboard- 100M Ethernet- interface and supports WIFI transmission. Package Includes: 1PC Manta E3EZ Control Board 1PC CB1 eMMC Core Board note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!