StarTech.com 2 Port PCI Express eSATA Controller Adapter Card - Dual Port PCIe eSATA Card w/Low Profile/Half-Height Bracket Port Multiplier technology supports multi-drive external enclosures over a single eSATA cable at speeds up to 3.0Gbps Supports hard drives larger than 136GB with 48-bit LBA and a native PCI Express chipset instead of a bridge chip, to ensure fast, reliable operation Backed by a StarTech.com lifetime warranty and free lifetime technical support 2 external eSATA ports Support for FIS and Command-based Port Multiplier technology Large capacity drive support with 48-bit Logical Block Addressing (LBA) Drive Hot-Plugging support Support for Native Command Queuing (NCQ)