The TXB113 is a 6-port SATA III (6gbps) to PCI Express x2 Gen 3 host card. It adds 6 AHCI SATA III ports to the computer through PCIe slots (x4), providing multiple internal 6Gbps high-connectivity performance hard drives and SSDs (Solid State drives). The adapter card fully supports SATA 3.0 hard drives and data transfer speeds up to 6Gbps, with a native PCI Express single chipset providing enhanced compatibility, reliability and performance for internal SATA 600mb/s storage needs 6 AHCI SATA III (6gbps) ports via PCI Express x4 Fully compliant with SATA 3.0 specifications and backward compatible with SATA I/II (1.5/3.0Gbps) drives PCI Express 3.0 compliant Port multiplier supports command exchange Natively supported single chipset design Supports local command queue (NCQ) SSC supports PCIe and SATA Includes low profile/low profile mounting bracket Specification: Product model: SATA3-T6 Product interface: 6*SATA3.0 interface Supported systems: Windows xP/Server 2003/Vista/7/8(32/64 bit)/for MAC/linux/Synology Main control chip: ASM1166 Applicable slots: PCI-E (4X, 8X, 16X) Operating environment: 0℃~50℃(use); 20℃~70℃(storage)