SUPPORT TWO SATA: Support Gen 1i, Gen 1x, Gen 2i, Gen 2m, Gen 2x, and Gen 3i, support two SATA, support AHCI1.0 mode and IDE mode, support hot swap. 6.0GBPS: Compliant with PCI Express v2.0 specification, backward compatible with PCI Express v1.0, supports communication speed of 6.0 Gbps, 3.0 Gbps and 1.5 Gbps. OPERATING SYSTEM: Compatible for Windows11 10 8 7 (32 64 bit), for Vista (32 64 bit), for Windows XP 2003 2008, for linux. STABLE : Adapter card adopts for ASMeia ASM1061 main control, high speed and stable , in line with Serial SATA 3.0 specification, backward compatible with SATA2.0 SATA1.0. PCB MATERIAL: PCIE 1X to USB expansion card made of PCB material, long time use without deformation, so as to ensure long term stability, compatible with SATA6G, 3G and 1.5G hard drives.