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Onboard standard CM4 connector, support access to CM4 Lite / eMMc series boards with Quad Core Cortex A72 64-bit processor, more powerful performance.
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Easily compatible with the interfaces of Raspberry Pi 3B / 3B+ boards.
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Onboard headphone jack (extended from USB).
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Onboard 4-ch USB ports, compatible with USB 2.0 / 1.1 transmission.
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Onboard RJ45 Gigabit Ethernet port, 10 / 100 / 1000 M adaptive.
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Onboard PoE header, for connecting PoE HATs.
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DSI interface is DSI1.
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Micro USB port is for power supply and for programming images USB SLAVE.
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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.
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When using CM4, you need to provide 5V/4A to CM4. Otherwise, it may power off, lower frequency, etc.
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USB 2.0 is close by default, if used dtoverlay=dwc2,dr_mode=host should be added in config.txt.
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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.