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2.4 Expansion Slots (PCI Express, SIM and M.2 Slots)
There is 1 PCI Express slot, 1 SIM socket and 3 M.2 sockets on this motherboard.
PCIE slot:
PCIE1 (PCIE x1 slot) is used for PCI Express x1 lane width cards.
SIM socket:
SIM1 socket is connected to M.2 Key_B.
M.2 sockets:
M2_2 (Key-E, 2230) supports PCIe x1 and is shared with USB2.0 for Wireless.
M2_1 (Key-M, 2242/2260/2280) supports SATA3 for SSD.
M_B1 (Key-B, 3042) is shared with USB2.0 and SIM for 4G.
M.2 Socket Pin Definition
M.2 Key-E Socket (M2_2):
M.2 Key-M Socket (M2_1):
M.2 Key-M Socket (M2_B1):
