Sonnet Technologies Tempo Duo ExpressCard/34 (6GB/s eSATA + USB 3.0) Cost-effective solution for adding two 6Gb/s eSATA ports plus two USB 3.0 ports to your MacBook Pro or PC notebook computer with an ExpressCard slot eSATA and USB ports support data transfers at up to 200 MB/sec eSATA ports support drive enclosures with port multipliers; eSATA and USB ports support drive enclosures with hardware RAID controllers USB 3.0 ports support storage, hubs, and other USB 3.0 devices; compatible with USB 2.0 devices Provides maximum performance over Thunderbolt through Sonnets Echo ExpressCard Pro Thunderbolt Adapter