Raspberry Pi CM4 To 3B/3B+ Expansion Board (Need CM4 to Function)

The CM4-to-Pi3-Adapter is an expansion board for Raspberry Pi CM4 to allow compatibility with Raspberry Pi 3B/3B+ interfaces. It has a standard CM4 connector onboard and supports access to CM4 Lite/eMMC series boards. In addition, it includes four USB ports, a Gigabit Ethernet port, a headphone jack, and a PoE pin.

• Onboard standard CM4 connector, support access to CM4 Lite / eMMc series boards with Quad Core Cortex A72 64-bit processor, more powerful performance.
• Easily compatible with the interfaces of Raspberry Pi 3B / 3B+ boards.
• Onboard headphone jack (extended from USB).
• Onboard 4-ch USB ports, compatible with USB 2.0 / 1.1 transmission.
• Onboard RJ45 Gigabit Ethernet port, 10 / 100 / 1000 M adaptive.
• Onboard PoE header, for connecting PoE HATs.
• DSI interface is DSI1.
• Micro USB port is for power supply and for programming images USB SLAVE.
• Please do not connect to other devices when programming the image by micro USB so as to ensure that CM4 can be powered on normally.
• When using CM4, you need to provide 5V/4A to CM4. Otherwise, it may power off, lower frequency, etc.
• USB 2.0 is close by default, if used dtoverlay=dwc2,dr_mode=host should be added in config.txt.
• It only supports 5V fan. (12V is not supported.) Please check it before connecting the fan, and note that the speed of the 5V fan cannot be adjusted without a controller.

Raspberry Pi CM4 To 3B Adapter

Based On Raspberry Pi CM4