Features: 1.The chip supports perfect welding with excellent workmanship and the number of surrounding originals is sufficient, the layout is uniform and neat. 2.Riser card's chip can eliminate interference to the greatest extent and improve stability. 3.Each interface is equipped with an independent interface protection insurance. 4.When the external USB equipment has a short circuit, too large current and others, the power can be cut off instantly. 5.Adopts thickened gold deposition technology, USB3.0 adapter card keeps strong anti-oxidation ability while gold deposition surface can keep more stable transmission. specification:Item Type: Expansion card for computer Model: U3055-V Chip: VL805 Data Transmission Speed: 500 (MB / S) Interface: USB3.0 Interface Rate: 5Gbps System Support: For XP / Win7 / Win8 / Win8.1 / Win10, etc. Size: Approx. 120 x 77 x 68mm / 4.72 x 3.03 x 2.68in PackageList:1 x Expansion Card for Computer1 x Interface Card Slot2 x Screw