Rosewill RC-225 PCI-Express 2.0 Low Profile SATA III (6.0Gb/s) Controller Card Fully compliant with Serial ATA specifications 2.6 Supports SATA III transfer rate of 6.0Gbps, 3.0Gbps 1.5Gbps 48 bits LBA can Break Capacity-Limit to Support HDD larger than 137GB