IMPROVE STORAGE CAPACITY: This 2-Port PCIe SATA and eSATA Controller Card enables support of two internal SATA or external (eSATA) drives through PCI Express; A cost-effective solution to increase your system's storage capacity ASM1061 CONTROLLER: This SATA and eSATA controller card features a dedicated chipset to enable two switchable SATA and eSATA 6Gbps ports via a single x1 PCIe slot; Supports FIS-based Port Multiplier, Command-based switching, NCQ, and ATA/ ATAPI commands WIDE COMPATIBILITY: Supports Windows and standard SATA and eSATA SSDs (solid-state drives) and HDDs (hard drives); Supports SATA III (6 Gbps) and earlier revisions; Compliant with PCI Express 2.0 CONVENIENT SETUP: This 2-port SATA/eSATA controller card installs in a full or low-profile PCIe slot; Compatible with PCIe x1, x4, x8, or x16 slots; Includes full-profile (pre-installed) & low-profile brackets, and 7-pin SATA cable THE IT PRO'S CHOICE: Designed and built for IT professionals, this 2-Port SATA and eSATA Controller Card is backed for 2 years, including free lifetime 24/5 multi-lingual technical assistance