Gigabyte B660M DS3H AX DDR4 - Page 26

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14) COM (Serial Port Header)
k
The COM header can provide one serial port via an optional COM port cable. For purchasing the
optional COM port cable, please contact the local dealer.
10
9
2
1
15) LPT (Parallel Port Header) k
The LPT header can provide one parallel port via an optional LPT port cable. For purchasing the optional
LPT port cable, please contact the local dealer.
Pin No. Denition Pin No. Denition
1
STB-
14
GND
2
AFD-
15
PD6
3
PD0
16
GND
4
ERR-
17
PD7
5
PD1
18
GND
6
INIT-
19
ACK-
7
PD2
20
GND
8
SLIN-
21
BUSY
9
PD3
22
GND
10
GND
23
PE
11
PD4
24
No Pin
12
GND
25
SLCT
13
PD5
26
GND
DEBUG
PORT
G.QBOFM
1
226
25
k Only for B660M DS3H DDR4.
Pin No. Denition
1 NDCD-
2 NSIN
3 NSOUT
4 NDTR-
5 GND
6 NDSR-
7 NRTS-
8 NCTS-
9 NRI-
10 No Pin