The Sonnet Echo ExpressCard is a specialized Thunderbolt 2 to ExpressCard/34 adapter that allows you to easily expand your computer's connectivity options. Included is an Express34 ESATA card so you can connect ESATA devices to your computer. With the Sonnet brand reputation for quality, this model supports a wide range of ExpressCard/34 adapters for eSATA, FireWire, and Gigabit Ethernet. It is designed to seamlessly connect ExpressCard/34 devices to Thunderbolt 2 equipped computers, providing a reliable and efficient solution for expanding your computer's capabilities. This card reader will read SxS cards as well.