1,VT6421CHIPSET PCI Host Controller

2,2 internal ports, 1 external port(but the external port is shared with one of the internal port)

3,Parallel ATA interface

4, Provides two independent channels to connect up to two Serial ATA hard disk drives

5,Features independent 256-byte FIFOs per channel for host reads and writes

6,Supports RAID Level 0, RAID Level 1 and JBOD

7,Driver supported MS Windows 98SE/Me/2000/XP/NT 4.0/XP 64-bit/Vista