Acrosser AMB-IH61T3 (Mini-ITX) - Manual (Page 9)

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2.2. Headers and Jumper Settings
COM3~6 Header Audio Header LVDS Backlight Control Header
COM2 Header CPU FAN Connector RS-485 Header
COM3 Signal Selection Jumpers Front USB Headers COM7~10 Headers
System FAN Connector CMOS Clear Jumper
Front Panel Header LVDS VDD Selection Jumper
GPIO Header
LVDS Signal Header