ASROCK STX-1500 User Manual page 9

1 : 4-pin DC-in PWR Connector (Input +12V~+28V) & UPS Module Power Output
Connector
2 : LVDS Panel Connector
3 : BL1, BL2
4 : Backlight Power Connector (BLT_PWR1)
5 : Panel Power Select (LCD_VCC) (PNL_PWR1)
6 : Backlight Power Select (LCD_BLT_VCC) (BKT_PWR1)
7 : 3W Audio AMP Output Wafer
8 : SPDIF Header
9 : Front Panel Audio Header
10 : Backlight Control Level (CON_LBKLT_CTL) (BLT_PWM1)
11 : Chassis Fan Connector (+12V)
12 : M.2 Key-M Socket (M2_M1; Shared with SATA3_0)
13 : Backlight Volume Control (BLT_VOL1)
14 : System Panel Header
15 : SATA3 Connectors (SATA3_0, SATA3_1) (SATA3_0 is shared with M2_M1)
16 : ATX/AT Mode Select (PWR_JP1)
17 : SATA Power Output Connector
18 : Digital Input / Output Default Value Setting (JGPIO_SET1)
19 : SPI TPM Header
20 : Digital Input / Output Power Select (JGPIOPWR) (JGPIO_PWR1)
21 : Digital Input / Output Pin Header (JGPIO1)
22 : ESPI Header
23 : COM Port Headers (COM1, 2)
24 : Clear CMOS Header
25 : USB2.0 Header (USB2_6_7)
26 : SIO_AT1
27 : Chassis Intrusion Header (CI1)
28 : M.2 Key-E Socket (M2_E1)
29 : Battery Connector
Back Side:
SIM Card Socket (SIM1)
DDR4 SO-DIMM (DDR4_B1)
eDP Connector (EDP1)
M.2 Key-B Socket (M2_B1)
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