CommentStreams:6000d12b06cc0a09179d5c4cb3908b78
Hello sir, You have the X820 v3.0 version expsnaion board, right? And the 5V OUT USB port is a 5V 2A POWER output for other device, it maybe ok to connect other device, but the output power is only 5v 2a, maybe your device drives too much power. If ang more questions, please contact us by email. Best regards, Geekworm