Compliant with Serial ATA Specification 3.0, Compliant with PCIe 2.0 specifications. Supports communication speeds of 6.0 Gbps, 3.0 Gbps and 1.5 Gbps. Supports programmable transmitter signal levels. Supports Gen 1i, Gen 2i, Gen 2m, Gen 2x and Gen 3i. Applicable slot: PCI-E (1 , 4 , 8 , 16 ). Supports two SATA ports. Color: Black. Material: plastic + metal. Supports AHCI 1.0 and IDE programming interface. Supports Native Command Queuing (NCQ). Supports port multiplier based switching or based switching. Supports Partial and Slumber Management states. Supports Hot Plug and Hot Swap. Compatible with SATA 6G, 3G and 1.5G hard drives. Chassis / small chassis can be used. Bus interface: PCI- x1. Connectors: 2x SATA. System support: PCI-enabled system with an available PCI slot. Windows 8/7 (32/64bit)/Vista(32/64bit)/XP/Server 2003/2008. Card size: (L*W) 71*57mm. Size: 120mm and 80mm. Quantity: 1Set. 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 an error of 0 to 2 cm, 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: 1 pc x PCI-e 2-Port SATA3 SATA III 6Gb/s card (No retail package). 1 pc x Low profile. 2 pcs 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.