Yes you can, but according to the Netgear website, instruction manual and some other forums be sure to **Update your Firmware First**. I set mine up wirelessly, updated firmware and then proceeded to connect via ethernet. Be patient when connecting, as it takes a couple minutes as updates it's internal settings to use the hardwired backhaul. After going through those steps it works great.
**Warning** please check the RBK43 specs on Netgear's website. The Satellites only have 2 LAN Ports available. The pictures and description on the Best Buy website are incorrect.