Nope, the CRS312 isn’t the only MikroTik device with 10G Ethernet ports. Some CCRs, like the CCR2116 and CCR2216, have 10G SFP+ ports, but if you're looking for actual RJ45 10G Ethernet ports, that's rare on their routers. MikroTik seems to push their switches (like the CRS series) for that.