ASROCK Z97E-ITX/ac Manual Del Usuario página 21

2.4 Expansion Slots (PCI Express Slots)
here is 1 PCI Express slot and 1 mini-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 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
mini-PCIe slot:
MPCIE1 (mini-PCIe slot) is used for WiFi module.
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