Anyone know of a USB 3 gigabit ethernet adapter that doesn't require a separate driver install with Yosemite? Avoiding separate driver installs mean fewer problems with future OS X upgrades. Some of the existing NICs are *still* waiting on Yosemite support. I'd get the Apple thunderbolt gigabit NIC, but the MacBook Air's sole thunderbolt port is already tied up with a monitor cable. Apple's USB NIC is 10/100, not gigabit.