ASROCK X299 User Manual page 16

No. Description
34 USB 2.0 Header (USB5_6)
35 TPM Header (TPMS1)
36 Voltage Control Header (V_CTRL1)
37 Thunderbolt AIC Header (TB1)
38 RGB LED Header (RGB_LED1)
39 Clear CMOS Jumper (CLRMOS1)
40 Right Angle Front Panel Audio Header (HD_AUDIO_RA1)
41 Front Panel Audio Header (HD_AUDIO1)
42 Chassis Fan Connector (CHA_FAN2)
10