Features: Expand your desktop connectivitys with PCIE to USB3.0 hubs, delivering 5Gbps data transfer across 4 external port for peripherals expansion. Featuring PCIExpress Gen2 interfaces and SATAs/IDEs power input, this adapter provides stable 900mA output per port to support highly demand USB devices like external drive and printers. for PC builders, IT professional, and gamers needing USB3.0 connectivitys, this expansion card compatibility between modern peripherals and legacys motherboards. for data heavy workflows, multimedia transfers, or multiple device setups in offices, studio, or gaming rigs requiring fast USB3.0 performances. Backward for USB1.1/2.0 devices for Windows7/8/10 systems, this PCIExpress expansion card ensures plugs and play functionality with driver support. Specifications: Materials: Plastic Size:120x115x84mm/4.72x 4.53x3.31inch Package Includes: 1PC PCIExpress to 4-port MiniSAS SFF-8073 expansion card 4PC SFF-8087 to 4 SATA3.0 cable note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.