Note:1. The CB1 couldn't be connected to the PI TFT screen. The / port will only work while using CM4. 2. The PI4B should be used with CB1 or CM4 core board to run Klipper CB1 / Manta M4P / M8P link: https://.aliexpress./item/1005004480671727.html?=a2g0s.12269583.0.0.7be158f9Mc1lEc GitHub Website: PI4B: https://github.//PI4B-Adapter/tree/master/Hardware CB1: https://github.//CB1 1. Brief Introduction: CB1 is an to CM4. 1.1 Main Features 1.1.1 CB1 1. CPU: Allwinner H616, -core -A53 @1.5GHz 2. GPU: G31 MP2, support OpenGL3.2 3. RAM: 512MB/1GB DDR3L SDRAM 4. Display: HDMI2.0A interface, support 4K display 5. USB 2.0 port 6. 100M Ethernet + 100M WiFi 7. The same BTB header as the CM4 1.1.2 PI4B Adapter V1.0 1. Use 4B board outline, the same mounting holedia; 2. Support various versions of CM4 modules; 3. Designed with Gigabit Ethernet interface, HDMI0 interface, HDMI1 interface, CAM interface, interface; 4. Equipped with ESD protection at the USB and network interfaces; 5. 40 pin double- pin header with the same function as ; 6. Adopting Type-C interface, which can be used to write CM4 with eMMC, and can supply power to the whole system at the same time; 7. A 5V power interface is reserved, which can be connected to a 5V fan for CM4 heat dissipation. 1.2 Product Parameters 1.2.1 PI4B 1. Product Size: 85 x 54.29mm 2. Power Input: Type-C 50.25V 3. Module Type Support: various versions of Raspberry PiCM4 modules. 4. Interface Support: - x 2,USB 2.0x4,RJ45,CAM,,-SD... Color: black Material: plastic Package Contents: 1 x Motherboard 1 x Base Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.