Expansion Slots - ASROCK IMB-1237 User Manual

2.4 Expansion Slots

There are one PCI Express slot, three M.2 sockets and one SIM socket on IMB-1237. There
are one PCI Express slot, four M.2 sockets and one SIM socket on IMB-1238 / IMB-X1238.
PCIE slot: IMB-1237:
PCIE1 (PCIE 5.0 x16 slot) is used for PCI Express x16 lane width cards.
IMB-1238 / IMB-X1238:
PCIE1 (PCIE 5.0 x16 slot) is used for PCI Express x16 lane width cards
(supports riser card x8/x8)
M.2 sockets: IMB-1237:
1 x M.2 (Key B, 3042/3052) with PCIe x1, USB 3.2 Gen1, USB 2.0 and SIM for
4G/5G
1 x M.2 (Key E, 2230) with PCIe x1, USB 2.0 and CNVi for Wireless
1 x M.2 (Key M, 2242/2280) with PCIe Gen4 x4 for SSD
IMB-1238 / IMB-X1238:
1 x M.2 (Key B, 3042/3052) with PCIe x1, USB 3.2 Gen1, USB 2.0 and SIM for
4G/5G
1 x M.2 (Key E, 2230) with PCIe x1, USB 2.0 and CNVi for Wireless
1 x M.2 (Key M, 2242/2280) with PCIe Gen4 x4 for SSD
1 x M.2 (Key M, 2242) with PCIe Gen3 x4 and SATA3 for SSD*
*Recommend using M2X4-SATA-4P module to support extra 4 SATA ports
(supported by special BIOS)
SIM Socket: 1x SIM socket connected to M.2 key B
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