The Calmotion LANCNC, LANUSB and 527F products all come standard with a wired RJ45 Ethernet port. All of these devices can connect wirelessly with adding a simple device that converts the wired connection to a Wifi connection.
The device to purchase go by several different names, like WiFi Adapter, Gaming adapter, a Client Mode access point, or Mesh Network. If the network is a "Mesh Network" with muliple satalites, you could use free ethernet ports that are on a nearby satalite mesh network device. The key when selecting what is right you, is it has to have a RJ45 Ethernet port and it has be able to connect to existing WiFi network. It should indicate it has the ability to "Allow devices that require a wired connection to access an existing Wi-Fi network."
Here is a example if a TP link TL-WR802N device is used. First the device will be setup in the correct mode, see below what their user manual calls "Client Mode". When the device is on the network, then a CAT5 cable can connect the Wifi device to the the Calmotion's wired network port. See other Calmotion Forum posts that cover finding the networks IP address range so the Calmotion unit can be setup with a Static IP address so other computers can share files with the Calmotion device.