1.Add 4 super speed USB 3.0 5Gbps ports (total bandwidth) on desktop PCs for Video, Audio or large data files transfer. Active more USB device on desktop PCs by this added on USB host controller. | 2. Builds in LTERIVER Smart Power Control Technology.Users do not need to plug any additional power cable but get 5V/8A max power.Each USB port get (5V/2A) 10W for connected USB device. | 3.PCIE 2.0 X1 design will compatible with PCIE 1.x,2.x,3.x protocol,PCIE X1,X4,X8,X16 slot.4X voltage transformer make sure each USB ports get 5V/2A power.4X fuse protect connected USB device from Overcurrent,Overload.4X solid capacitor keep all USB 3.0 ports works stable and Safe. | 4. Need to install driver on Windows Server, XP,Vista,7(32/64bit) System.Driver free on 8.0,8.1,10(32/64bit) System. Windows Server: 2003,8008,2008R2,2012,2016 and later version. | 5.WARNING: 1.Works on full size PCs only, NOT for slim PCs. 3. Check If PCs have empty PCIE slot for USB card before purchase. 4.Install driver before using. Tech-support: [email protected]

1.Add 2X USB 3.1 Gen2 10Gbps (16Gbps total bandwidth) USB type C ports on desktop computer. Each USB-C port will get 10Gbps max superb speed for video, audio data transfer. | 2. Equipped with LTERIVER Smart Power Control Technology.No need to plug any power cable,but each USB port can get 5V/3A max power,5V/6A in total.Make sure connected USB 3.1 Gen2 device works in high performance. | 3.Select ASMedia ASM3142 USB 3.1 extensible host controller,the latest USB 3.1 Gen2 expansion card solution.PCIE 3.0 X4 interface design will compatible with PCIE X4, X8, X16 slot. | 4.Need to install driver on Windows 7 and Windows Server 2008,2008R2(32/64bit) system. Driver free on Windows 8.0,8.1,10(32/64bit) and Windows Server 2012,2012R2,2016, 2019 system.Plug and play on MAC OS 10.9,10.10,10.12,10.13,10.14 and 10.15 system,NOT support MAC OS 10.11 system. | 5.WARNING:1.Check if computer have empty PCIE X4/X8/X16 slot for this USB 3.1 Gen2 card before purchase.2. Windows7, Windows Server 2008, 2008R2(32/64bit) system need to install driver.3.Please change to low profile bracket if using it on slim desktop computers.4. Driver Download: www.lteriver.com Tech-support: [email protected]