SDML-WLU0 Series - User Guide, Rev. 1.0
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7.9.
M.2 Key M 2242 / 2280 Slot (M2M1)
The SDML-WLU0 Series supports M.2 modules in format 2242 or 2280 with Key M. The M.2 specification supports
PCIe x4 and SATA 3.0 signals. The slot can be used to integrate an M.2 PCIe x4 SSD (NVMe) or M.2 SATA SSD to the
module.
Figure 20: M.2 Key M 2242 / 2280 Slot M2M1
Table 27: Pin Assignment M2M1
Pin
Signal
Description
Note
1
GND
Ground
2
+3.3V
3.3 V power supply
3
GND
Ground
4
+3.3V
3.3 V power supply
5
PERn3
PCIe Lane 3 receiver pair (-)
6
-
7
PERp3
PCIe Lane 3 receiver pair (+)
8
-
-
9
GND
Ground
10
DAS / DSS# / LED1#
Device active signal / disable staggered spin-up / LED
11
PETn3
PCIe Lane 3 transmitter pair (-)
12
+3.3V
3.3 V power supply
13
PETp3
PCIe Lane 3 transmitter pair (+)
14
+3.3V
3.3 V power supply
15
GND
Ground
16
+3.3V
3.3 V power supply
17
PERn2
PCIe Lane 2 receiver pair (-)
18
+3.3V
3.3 V power supply
19
PERp2
PCIe Lane 2 receiver pair (-)
20
-
21
GND
Ground
22
-
23
PETn2
PCIe Lane 2 transmitter pair (-)
24
-
25
PETp2
PCIe Lane 2 transmitter pair (+)