Colour: Black Material: plastic and metal Supports AHCI 1.0 and IDE programming interface Supports Native Queuing(NCQ) Supports Port Multiplier based switching or based switching Supports Partial and Slumber Power Management states Supports Hot Plug and Hot Swap Compatible with SATA 6G,3G and 1.5G Hard Drives Large chassis or small chassis can be used. Bus Interface:PCI-Express x1 Connectors: 2x SATA System Support: PCI Express-enabled system with on avaliable PCI Express slot 8 or 7(32 or 64bit) or Vista(32 or 64bit) or XP or Server 2003 or 2008 Board size:(L x W)71 x 57mm Bracket size:120mm and 80mm Note: This product can only be installed on a PCI-E interface, Do not install the older PCI interface Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 3Pc x PCI-e 2-Port SATA3 SATA III 6Gb or s Card (No retail package) 3Pc x Low Profile Bracket 6Pcs x Screws Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Comliant with Serial ATA Specification 3.0,Compliant with PCIe 2.0 specifications. Supports communication speeds of 6.0Gbps,3.0Gbps and 1.5Gbps Supports programmable transmitter signal levels Supports Gen 1i,Gen 2i,Gen 2m, Gen 2x and Gen 3i Applicable Slot: PCI-E (1 x , 4 x , 8 x , 16 x ) Supports two SATA Ports Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.