The Apple one that's 10/100 is kinda of slow and I'd like to transfer files faster within the LAN network. I can't use wireless because between my room and the mountain router, the entire wall seems to be a dead area. Once I step outside my door, the connection is full power, but back inside my room, it can barely connect to the router much less even load Google.com. Is there any alternative for a wired solution that can be faster than 100Mbps? Can I possibly install a Gigabit Ethernet card inside the MBA?