Single Boot - MacBook Air - Install Network Drivers?

Hi, when I installed Ubuntu Server 15.10 on my MacBook Air it did not recognize my network hardware.

My wireless card is: broadcom corp BCM4360 802.11ac Wireless Network Adapter [14e4:43a0] rev 03

I have read the threads on downloading the proper driver/keel package. The problem is that this is a single-boot machine, and the wireless card has not been recognized, so I have no coectivity to download. Of course I have other computers. Can I copy the needed components to a USB stick and install them that way? Or is there some other solution?