27
Chapter 3: Motherboard Connections
M.2 Slots
The X11SWN-H/E/L/C-WOHS motherboard has three M.2 slots. M.2 was formerly known
as Next Generation Form Factor (NGFF). M.2 allows for a variety of card sizes, increased
functionality, and spatial efficiency. The M.2 slot at JMD1 supports
M.2 B-Key SATA 3.1/USB
3.0/USB 2.0 modules with Nano SIM in a 2242/3042/2280 form factor, whereas the M.2 slot
at JMD2 supports M.2 E-Key PCI-E x1/USB2.0/CNVi modules in a 2230 form factor. The M.2
slot at JMD3 supports M.2 M-Key PCI-E x4/SATA modules in a 2242/2280 form factor. Refer
to the tables below for pin definitions.
M.2 Pin Definition (JMD1)
Pin#
Definition
Pin#
Definition
1
N/C
2
P3V3SB
3
GND
4
P3V3SB
5
GND
6
FULL_CARD_POWER_
OFF#(PU TO P1V8SB only)
7
USB_D+
8
W_DISABLE1#(PU TO
P3V3SB only)
9
USB_D-
10
N/C
11
GND
12-19
KEY B
20-22
N/C
23
WAKE_ON_WWAN#(PU TO
P1V8SB only)
24-25
N/C
26
W_DISABLE2#(PU TO
P1V8SB only)
27
GND
28
N/C
29
USB3.0-Rx-
30
UIM-RESET
31
USB3.0-Rx+
32
UIM-CLK
33
GND
34
UIM-DATA
35
USB3.0-Tx-
36
UIM-PWR
37
USB3.0-Tx+
38
N/C
39
GND
40
N/C
41
SATA-B+
42
N/C
43
SATA-B-
44
Alert# (PU to P1V8SB only)
45
GND
46
N/C
47
SATA-A-
48
N/C
49
SATA-A+
50
N/C
51
GND
52-56
N/C
57
GND
58-65
N/C
66
SIM_DETECT
67
RESET#
68
N/C
69
N/C
70
P3V3SB
71
GND
72
P3V3SB
73
GND
74
P3V3SB
75
N/C
