CRS310-8G+2S+IN & CSS610-8P-2S+IN, S+RJ10

According to https://help.mikrotik.com/docs/display/ROS/MikroTik+wired+interface+compatibility#MikroTikwiredinterfacecompatibility-10GSFP+/25GSFP28

It states that CSS610 and CRS310 support S+RJ10 modules. But it doesn’t say if I can populate both SFP+ ports or just one of them.

For CRS305 I can use 2 of 4 ports.

My goal is that I want to use two poe injectors to power two poe+ devices on my CRS310 and I want to use two S+RJ10 on both SFP+ ports and connect them to 10gig port on the same two devices that are being powered by injectors.

But with the gig ports isolated from the 10gigs.
I might need a CRS305 and use two S+RJ10 on that and two 10 gig DACs with and uplink on the gig port.

I do not have a 10gig switch with either SFP+ or 10Gig copper. So I have to improvise and use minimal of equipment.

A CRS gig switch are required for the two devices because I will need to setup QoS profile