This is Sonnet’s Fusion F2, that is a portable 2-Drive RAID SATA storage system. The Fusion F2 comes with 1TB or 640GB of capacity and it has an eSATA interface. The device can be connected to Sonnet Tempo SATA ExpressCard/34 slot. It can also be configured to work in RAID 0 or RAID modes.
Fusion 2 offers up to 134MB/sec read and write rates. The 1TB version of the RAID storage system costs $995.