Sonnet Tempo Edge SATA 6Gb/s ExpressCard/34 Single Port Adapter Affordable solution for adding one 6Gb/s eSATA ports to your MacBook Pro or PC notebook computer with ExpressCard/34 slot Supports single SATA drive enclosures and multi-bay SATA drive enclosures with hardware RAID controllers AHCI compliant-no drivers to install Supports up to 4 disk drives Supports drive hot-swapping