Macally PHR-S100SUA Hi-Speed eSATA/FireWire/USB2.0 Storage Enclosure for 3.5-Inch SATA HDD Solid Aluminum body for excellent heat dissipation and protection to your hard disk drive Macally PHR-S100SUA eSATA/FireWire/USB2.0 Enclosure Designed for all 3.5-Inch SATA I and SATA II hard disk drives Solid Aluminum body for excellent heat dissipation and protection to your hard disk drive Supports IEEE 1394A Firewire connection up to 400Mbps Dual Firewire ports for daisy chain Hot plug and play* Horizontal position for stacking, and space saving vertical position with stand Active LED to indicate power and data access status Auto switching(110~240V) AC adaptor included System Requirements : Windows ME/2000/XP/Server 2003/Vista Mac OS 9.2, Mac OS X 10.1 to 10.5 and above for USB and Firewire connection; OS X 10.2 and above for eSATA connection*