Since the new Retina MacBook Pro doesn't have room in its chassis for chunky ports like RJ-45, Apple has released a Thunderbolt to Gigabit Ethernet Adapter to compensate. There is also a software update to make it compatible with existing Thunderbolt Macs. Thankfully the Promise SANlink has a Thunderbolt loop-through port, so this allows the Mac mini Server to have more than one Gigabit NIC for MDC service without resorting to an external PCI chassis.