• RAID Levels: 0, 1
• RAID Supported: Yes
• Controller Type: Serial ATA/600
• Host Interface: PCI Express 2.0 x1
• Total Number of SATA Ports: 4
Easily add 2 more SATA ports to your system for additional drives or combine them into a RAID array. Utilize either two internal SATA port, 2 external eSATA ports, or 1 of each. Simple and quick to use in a vertical orientation for quick connecting. Allows for a single port to be used for port multiplication. Includes an LED cable for detecting HDD activity.