ITEM NAME:2X(5Gbps Ultra-High Speed 19Pin Pci-E Card 2-Port Pcie To Usb3.0 19Pin + FrW5P9) 2X(5Gbps Ultra-High Speed 19Pin Pci-E Card 2-Port Pcie To Usb3.0 19Pin + FrW5P9) 2X(Interface Type?:??PCI Express Chip?:??NEC D720201 Input Interface?:??PCI-e X1 Output Interface?:??USB3.0 Type-A * 2 + 19PIN Front-facing Expansion Interface Power Supply?:??No need of extra power supply Mainboard Slot?:??Compatible with PCI-E X1, PCI-E X4, PCI-E X8, PCI-E X16, not support P Supported System?:??Win10 / Win8 / Vista / XP / 2000 / ME / 98SE Server 2003-2008 32/64-bit Speed?:??5Gbps Standard?:??Conform to PCI Express2.0 Standard size:120*90*70mm Material: PCB colour:Black Package Contents: 1 * expansion board 1 * short iron 1 * disc)