Windows Vista (32-/64-bit) / XP (32-/64-bit) / Server 2003 & 2008 (32-/64-bit) / 2000
-Easily adds two external (eSATA) ports to your desktop computer for external drive connections. -Supports Native Command Queuing (NCQ) and SATA TCQ commands. -New Serial ATA cable -- easier to install. -Easy plug-n-play installation to your external serial ATA drives. -Supports SATA hard disk hot-plugging.