4 Internal SATA 6Gb/s Ports
Compatible with SATA 6G, 3G and 1.5G Hard Drives
PCI-Express x1 Interface is Compatible with PCI-Express x4, x8, and x16 slots
Supports SATA Rev 3.0 transfer speeds up to 6.0Gbps and backwards compatible with SATA I/II at 1.5/3.0Gbps
Supports any OS like Windows10/8/7 (32/64 bit) / Vista (32/64 bit) / XP/2003/2008/linux. System Requirements: One available PCI Express X1, X4, X8 or X16 slot.