The Tempo SATA Pro ExpressCard/34 eSATA Controller from Sonnet adds two eSATA ports to your notebook computer. It installs in the ExpressCard/34 slot and is fully compatible with Mac OS X 10.4, Windows XP, and Windows Vista.
The eSATA interface supports bus transfer speeds of up to 300MB/sec, with sustained throughput of up to 200MB/sec. It is designed to meet the high standards required in professional environments.
Dual eSATA ports for device connectivity
Each ports supports Port Multiplication devices, allowing you to host up to 10 hard drives
Each port supports bus transfer of up to 300MB/sec and sustained transfer of up to 200MB/sec, making it a great choice for use with RAID storage
FIS-based switching controller
Spread Spectrum Clocking is compatible with low-EMI emitting SATA drives
Bus Mastering doesn't eat up CPU cycles for data I/O