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1.11.3 PCIe x1 Slot: PCI_E1
The PCI Express slot supports PCIe interface expansion cards.
1.11.4 M.2 Slot (Key M, 2280 & 2242): JM1
Please install the M.2 solid-state drive (SSD) into the M.2 slot as shown below.
1. When adding or removing expansion cards, make sure the system power is OFF.
2. Intel® RST only supports PCIe M.2 SSD with UEFI ROM and does not support.
Legacy ROM.