ASROCK N3150B-ITX Bedienungsanleitung Seite 14

2.2 Expansion Slots (PCI Express Slot)
here is 1 PCI Express slot on the motherboard.
Before installing an expansion card, please make sure that the power supply is
switched of or the power cord is unplugged. Please read the documentation of the
expansion card and make necessary hardware settings for the card before you start the
installation.
PCIe slot:
PCIE1 (PCIe 2.0 x1 slot) is used for PCI Express cards with x1 lane width cards.
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