Max. theoretical transfer speed is 12,5 MB/s on a full duplex link. Given there is always overhead when transferering over a network you should expect around 10-11 MB/s on a 100Mbps cabled network.
Thank you for the quick reply. Windows 10 typically reports 8 to 11MB so I suspect that is in the ballpark. I was concerned that I unknowingly have something connected that is 10Mb and dragging the rest down.