Features: Brand new and high quality CB1 is a computer core board similar to Raspberry Pi CM4. High-performance CPU: Quad-core Cortex-A53 PI4B with CB1 installed, the performance can be close to Raspberry Pi 3B, and can also be used instead of Raspberry Pi 3B. Due to the modular form, PI4B and CM4 have high modularity, which is convenient for users to use DIY. With high cost performance, it can become a cheap choice for 3D printer users who use ordinary motherboards to run Klipper. Specifications: Item Type: Motherboard Model: BTT CB1 Board CPU: Quad-core Cortex-A53 BTB transposon: same as Raspberry Pi CM4 CPU: Allwinner H616, Quad-core Cortex-A53 1.5GHz GPU: Mali G31 MP2, support OpenGL3.2 Memory: 512MB/1GB DDR3L SDRAM Display: HDMI-compatible 2.0A interface, supports 4K display USB 2.0 port 100M Ethernet + 100M WiFi Same BTB header as Raspberry Pi CM4 Size: about 55x40mm/2.16x1.57in Package includes: 1 pc x BTT CB1 Motherboard