Key B 3042 Slot (M2B1); Table 30: Pin Assignment M2B1; Figure 24: M.2 Key B 2042 Slot M2B1 - Kontron 3.5"-SBC-WLU User Manual

7.13. M.2 Key B 3042 Slot (M2B1)
The 3.5"-SBC-WLU supports M.2 modules in format 3042 with Key B. The M.2 specification supports PCIe x1 and USB
3.1 signals as well as UIM signals connected to Micro SIM card holder CN9. The slot can be used to integrate WWAN
communication to the mainboard.

Figure 24: M.2 Key B 2042 Slot M2B1

Table 30: Pin Assignment M2B1

Pin Signal
1 -
2 +3.3V
3 GND
4 +3.3V
5 GND
6 PWROFF#
7 USB-D+
8 DISABLE#
9 USB-D-
10 LED#
11 GND
12 KEY
13 KEY
14 KEY
15 KEY
16 KEY
17 KEY
18 KEY
19 KEY
20 -
21 -
22 -
23 -
www.kontron.com
Description
3.3 V power supply
Ground
3.3 V power supply
Ground
M.2 module power enable
USB 2.0 data differential pair (+)
Wireless disable
USB 2.0 data differential pair (-)
Device active signal
Ground
3.5"-SBC-WLU - User Guide, Rev. 1.0
Note
// 42