Will the Apple Thunderbolt to Gigabit Ethernet Adapter work properly under these conditions?: 1. I would be running Snow Leopard OS X 10.6.8 ( Apple Website suggests OS X 10.7.4 (Lion) or above...) 2. It would be for a 2011 iMac ( So that would be a first generation Thunderbolt port) It would be replacing a dead Ethernet port... Thanks very much!