PEXSATA22I is a dual port PCI Express based SATA Controller card that allows you to add two internal SATA II (SATA /300) ports to a computer through simple installation into an available PCI Express slot. Supporting data transfer speeds of up to 3.0 Gbps, this SATA controller card features Port Multiplier support with command-based switching as well as Native Command Queuing to ensure optimum performance. Using a native PCI Express single chipset, it provides enhanced compatibility, reliability and performance for your external storage needs. Plus, to ensure broad compatibility, PEXSATA22I includes both standard form factor and low profile brackets, allowing you to add SATA capability to virtually any computer, regardless of the case form factor.