Pci_E1: Pcie Expansion Slot; Sata1~4: Sata 6Gb/S Connectors - MSI MEG Z590I UNIFY Quick Start Manual

PCI_E1: PCIe Expansion Slot

⚠
Important
If you install a large and heavy graphics card, you need to use a tool such as MSI
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Graphics Card Bolster to support its weight to prevent deformation of the slot.
When adding or removing expansion cards, always turn off the power supply and
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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.

SATA1~4: SATA 6Gb/s Connectors

These connectors are SATA 6Gb/s interface ports. Each connector can connect to one
SATA device.
⚠
Important
Please do not fold the SATA cable at a 90-degree angle. Data loss may result during
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transmission otherwise.
SATA cables have identical plugs on either sides of the cable. However, it is
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recommended that the flat connector be connected to the motherboard for space
saving purposes.
SATA2 will be unavailable when installing M.2 SATA SSD in the M2_1 slot.
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Overview of Components
SATA1
SATA3
SATA2
SATA4