Add 4 6Gb/s SATA 3.0 devices to your computer. Backward compatible with 1.5 Gbps/s and 3 Gbps/s. Based on Marvell 88SE9215 chip, more stable and widely compatible. Support port-based multiplier FIS and command-based exchange. Compatible with operating system WIN10 / WIN8 / WIN7 / Vista / XP / Linux. Compatible with PCI-E 1x,4x8x,16x slots. Not applicable to PCI. Support Gen 1i, Gen 1x, Gen 2i, Gen 2m, Gen 2x, and Gen 3i. Support hot swap. Support SSD/HDD as System Boot Disk(AHCI mode is required)