Compliant with PCI-Experss specification V2.0 and backward compatible with PCI-Express 1.x Compliance with Serial ATA Specification 3.0 Bus Type of PCI Express X1 interface, Compatible with PCI Express x1, x2, x4, x8 and x16 Slot. The supported communication rates are 6.0 Gbps, 3.0 Gbps and 1.5 Gbps Hot swap and heat exchange. Rear 6-port SATA3.0 interface for easy wiring. Support AHCI Boot Mode Compatible with SATA 6G, 3G and 1.5G hard drives. Feature: Single Port Speed Up to 500MB Function: for SSD HDD IPFS Mining