Can the 4 SFP+ ports on the Dell EMC N1124T-ON be used for the router's 10GbE LAN port, a NAS, and a 10GbE workstations?

I have a Dell EMC N1124T-ON.

I wonder about the possibility & implications of using the 10GbE SFP+ ports for connecting 10GbE interface units:

1. Router
2. NAS
3. Workstation 1
4. Workstation 2

Is this valid?