You can download driver for Linksys BEFCMU10 Cable 2 1.7 here, but DriversKit`s Team strongly recommend you to use Driver Updater Pro for finding the latest version of this driver. You can download Driver Updater Pro here.
Also you can:
Search Linksys BEFCMU10 Cable 2 1.7 driver at Google
Search Linksys BEFCMU10 Cable 2 1.7 driver at Yahoo