About this item WIDE COMPATIBILITY –Compliant with Serial ATA 3.0 specification, backward compatible with SATA2.0 SATA1.0; PCI-Express v2.0 compliant, backward compatible with PCI-Express v1.0.Fit For 7/8/XP/10,fit for Ubuntu system. HIGH SPEEDS –Supports communication speeds of 6.0 Gbps, 3.0 Gbps and 1.5 Gbps; supports Gen 1i, Gen 1x, Gen 2i, Gen 2m, Gen 2x, and Gen 3i. SUPPORTS MODE –Supports AHCI1.0 mode and IDE mode, native command queue (NCQ), FIS based on port multiplier switch or command switching and hot plug. WARM TIPS –Compatible with SATA6G, 3G and 1.5G hard drives.User with SATA3.0 data cable for best results.PCI-E must have a slot V2.0, V1.0 will not exceed 250M, PCI-E can be X1 or X16 as long as it is V2.0 version, there is spare X16 slot directly into X16 slot on. CUSTOMER SERVICE –We guarantee the product is brand new. Please feel to us if you have any problems, we will give you a satisfactory answer.