The configuration can vary depending on the type of switch you are using, so this is for the Nexus 5600 series, tested on the 56128. Unified ports on this device are available on the modules you can install in the top two slots, they are 24 ports each unified. So you can have a total of 48 ports. The border is orange so you know they are different.
By default they are Ethernet 10 gig ports, so if that’s what you want then you don’t need to change anything.