Easily add 4 more SATA ports to your system for additional drives. 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.Host Interface: PCI Express 2.0 x1Data Transfer Rate: 5 Gbit/sDrive Type: Serial ATA/600Ports: 4 x Serial ATA/600 Serial ATA InternalForm Factor: Low-profile Plug-in CardPackage Contents: 4 Port SATA III PCI-E 2.0 x1 1 x Driver CD 1 x User Manual 1 x Low Profile Bracket 1 x LED Cable Green Compliant: YesGreen Compliance Certificate/Authority: WEEELimited Warranty: 1 YearPackage Contents 4 Port SATA III PCI-E 2.0 x1 1 x Driver CD 1 x User Manual 1 x Low Profile Bracket 1 x LED Cable