Biostar B350ET2 User Manual page 15

SATA_POWER1: SATA Power Connector
This SATA power connector enhances the power of rear USB ports.
PANEL1: Front Panel Header
This 16-pin header includes Power-on, Reset, HDD LED, Power LED, and speaker connection.
SATA1~SATA4: Serial ATA 6.0 Gb/s Connectors
These connectors connect to SATA hard disk drives via SATA cables.
Pin Assignment
1 VCC3
2 VCC3
3 VCC3
4 Ground
5 Ground
6 Ground
7 VCC5
8 VCC5
Pin Assignment Function
1 +5V
2 N/A
Speaker
3 N/A Connector
4 Speaker
5 HDD LED (+) Hard drive
6 HDD LED (-) LED
7 Ground
Reset
8 Reset control button
Chapter 2: Hardware installation | 15
B350ET2
Pin Assignment
9 VCC5
10 Ground
11 N/A
12 Ground
13 12V
14 12V
15 12V
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Pin Assignment Function
9 N/A
N/A
10 N/A
11 N/A N/A
12 Power LED (+)
Power
13 Power LED (+)
LED
14 Power LED (-)
15 Power button Power-on
16 Ground button
Pin Assignment
1 Ground
2 TX+
3 TX-
4 Ground
5 RX-
6 RX+
7 Ground