J2: digital i/o connector (4 in, 4 out), J4: external audio connector for 7.1 channel, Jp4: for lpc i/f adaptor card – IBASE MI900 User Manual
Page 22: Id394 with fintek f81216, 2 or 4 serial ports, Id395 winbond wpct200 x1 for tpm1.2, J5: power led
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