Hello, Johan!
You can see this at the documentation, for example:
Data Sheet
EXTERNAL PORTS – X670-G2-48X-4Q
48 ports 10GBASE-X SFP+ (1Gb/10Gb dual speed)
Summit Family HW Install Guide
The Summit X670-G2-48x-4q and X670-G2-72x have SFP+ ports that support dual interface speeds ofGigabit Ethernet and 10-Gigabit Ethernet.
Thank you!