MSI MPG Z490 GAMING PLUS - SATA1~6: SATA 6 Gb;S Connectors

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Overview of Components
SATA1~6: SATA 6Gb/s Connectors
These connectors are SATA 6Gb/s interface ports. Each connector can connect to one
SATA device.
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Important
∙ 
transmission otherwise.
∙ SATA 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.
∙ SATA2 will be unavailable when installing M.2 SATA SSD in the M2_1 slot.
∙ SATA5 & SATA6 will be unavailable when installing M.2 SSD in the M2_2 slot.
SATA1
SATA3
SATA2
SATA4
SATA5
SATA6
M.2 & SATA combination table
Slot Available SATA connectors
M2_1 PCIe SATA PCIe SATA PCIe SATA
M2_2 PCIe PCIe SATA SATA  
SATA1      
SATA2      
SATA3      
SATA4      
SATA5      
SATA6      
(SATA: M.2 SATA SSD, PCIe