Pci_E1~3: Pcie Expansion Slots; Sata1~6: Sata 6Gb/S Connectors; Se1_21: Satae Connector - MSI H170M PRO-DH User Manual

PCI_E1~3: PCIe Expansion Slots

Important
When adding or removing expansion cards, always turn off the power supply and
unplug the power supply power cable from the power outlet. Read the expansion
card's documentation to check for any necessary additional hardware or software
changes.

SATA1~6: SATA 6Gb/s Connectors

These connectors are SATA 6Gb/s interface ports. Each connector can connect to
one SATA device.

SE1_21: SATAe Connector

This connector is SATAe (SATA Express) interface port. The SATAe connector can be
used with a single SATAe device or two legacy SATA devices.
Important
● Please do not fold the SATA or SATAe cable at a 90-degree angle. Data loss may
result during transmission otherwise.
● SATA or SATAe cables have identical plugs on either sides of the cable. However,
it is recommended that the flat connector be connected to the motherboard for
space saving purposes.
PCI_E1: PCIe 3.0 x16 slot
PCI_E2: PCIe 3.0 x1 slot
PCI_E3: PCIe 3.0 x1 slot
SATA6
SATA3
SATA1
SATA4
SATA2
SATA1
SATAe1
SATA2
Overview of Components
SATA5
25