Key B Socket (M2_Keyb); Table 34: Pin Assignment M2_Keyb; Figure 28: M.2 Key B Socket M2_Keyb - Kontron MITX-CFL0 Series User Manual

7.12. M.2 Key B Socket (M2_KEYB)
The MITX-CFL0 Series has an M.2 socket for a Type 2242 / 3042 / 2280 module. The M.2 Key B socket supports SATA
3.0, PCIe x1 and USB 3.0 signals for the model with Intel® Q370 chipset, and only USB 3.0 signals for the model with
Intel® H310 chipset. The socket also supports USIM signals routed to the Micro SIM Interface Slot U_SIM, which makes
it possible to use a WWAN wireless modem in this M.2 socket. For the model with SATA 3.0 / PCIe x1 signals support, it
can be used for M.2 SSD installation as well.

Figure 28: M.2 Key B Socket M2_KEYB

Table 34: Pin Assignment M2_KEYB

Pin Signal
1 CONFIG3
2 +3.3V
3 GND
4 +3.3V
5 GND
6 FULL CARD PWR OFF
7 USB-D+
8 W DISABLE#1
9 USB-D-
10 GPIO9
11 GND
12 KEY B
13 KEY B
14 KEY B
15 KEY B
16 KEY B
17 KEY B
18 KEY B
19 KEY B
20 NC
21 CONFIG0
22 NC
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Description
Define module type
3.3 V power supply
Ground
3.3 V power supply
Ground
M.2 module power enable
USB 2.0 differential pair (+)
Wireless disable 1
USB 2.0 differential pair (-)
Ground
Define module type
MITX-CFL0 Series - User Guide, Rev. 1.1
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