Sonnet's Echo ExpressCard/34 Thunderbolt Adapter expands Thunderbolt connectivity to support more than just storage systems and monitors. This Sonnet adapter adds an ExpressCard/34 2.0 slot to any Thunderbolt-equipped computer to which it's connected, enabling the use of a wide variety of ExpressCard/34 cards. Some of the ExpressCard/34 adapters include FireWire and Gigabit Ethernet interfaces, CompactFlash and SDXC card readers and eSATA. This adapter supports hot swapping so you can select and change the ExpressCard as needed without shutting down the system. For more information or to purchase the Echo ExpressCard/34 Thunderbolt Adapter, priced at $149, call QuadStar at 440-546-9911