14
Pinouts and Signal Descriptions
3.8. M.2
Expansion
Slots
There are 2 internal M.2 slots on the motherboard. Refer to
2.6.1Carrier Board Connector Locations
on page 6 for
their locations.
3.8.1. M.2 for SSD
M.2 (Key M, 2242/2260/2280*) with PCIe x4 Gen4 and SATA 6Gb/s for SSD.
(*M.2 Key M 2280 supported by bracket)
Pin
Signal
Signal
Pin
1 GND
+3.3V
2
3 GND
+3.3V
4
5 PERn3 NC
6
7 PERp3 NC
8
9 GND
SATA
LED
10
11 PETn3 +3.3V
12
13 PETp3 +3.3V
14
15 GND +3.3V
16
17 PERn2 +3.3V
18
19 PERp2 NA
20
21 GND NA
22
23 PETn2 NA
24
25 PETp2 NA
26
27 GND NA
28
29 PERn1 NA
30
31 PERp1 NA
32
33 GND NA
34
35 PETn1 NA
36
37 PETp1
DEVSLP
38
39 GND
SMB_CLK
40
41 PERn0/SATA-B+
SMB_DATA
42
43 PERp0/SATA-B- NA
44
45 GND NA
46
47 PETn0/SATA-A- NA
48
49 PETp0/SATA-A+
PERST# 50
51 GND
CLKREQ#
52
53 PEFCLKn
WAKE#
54
55 PEFCLKp NA 56
57 GND NA
58
Key
67 NA NA
68
69 PEDET +3.3V
70
71 GND +3.3V
72
73 GND +3.3V
74
75 GND
Table 10: M.2 Key-M Socket (M2_M1)
