Gigabyte B460M DS3H AC User Manual page 16

Installation Notices for the M.2 and SATA Connectors:
The availability of the SATA connectors may be affected by the type of device installed in the M.2 socket. The
M2M_SB connector shares bandwidth with the SATA3 5 connector. Refer to the following tables for details.
Connector
Type of M.2
SATA3 0
SSD
M.2 SATA SSD
a
M.2 PCIe SSD
a
No M.2 SSD Installed
a
a: Available, r: Not available
SATA3 1 SATA3 2 SATA3 3
a a a
a a a
a a a
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SATA3 4 SATA3 5
a r
a a
a a