22 auxiliary 4-pin power connector (atx1), 23 tpm connector (20-1 pin tpm_slot), 24 spi flash connector(spi_cn1) – Advantech AIMB-766 User Manual
Page 51: Auxiliary 4-pin power connector (atx1), Tpm connector (20-1 pin tpm_slot), Spi flash connector(spi_cn1), Chapter 2 c onnecting peripherals
