XB7 Gateway RJ45 sockets

I have an XB7 Gateway that is working fine! It has 4 RJ-45 sockets at the bottom of the backside for devices to plug in. The socket in the bottom right of that group of 4 has an orange stripe beside it. Does that mean it is only providing 100Gbs connectivity there? When I connect a device via that socket, the top LED on the device's socket only flickers amber not green and I am concerned about the throughput. Hope someone can help me.