1. Four USB 3.0 ports are provided, each with a bandwidth of 5Gbps and a bandwidth of 20Gbps. and stable USB device connection for users. 2. PCIE X4 is designed for PCI X4, X8, X16 slots. for PCIE X1 slots, not for PCI slots. 3. Built in power supply ensures stable and sufficient power supply, stable operation of equipment, low power consumption and energy saving. 4. The NEC720202 USB 3.0 card is an industrial high-performance USB expansion card, which is applicable to all USB interface devices, including industrial cameras, SSD/HDD chassis, flash drives, VR playback boxes, digital devices, etc. 5. System requirements: /Windows 8/Windows 8.1/Windows 7/Windows Vista/XP/Server 2000; Windows Server 2012/2008 /2003, OS 10. x, Linux 2.6.31 or higher Extension type: industrial USB3.0 adapter card Main chipset: NEC720202+ASM1812 Bus type: PCI 2.1, X4 Transmission interface: 4 x external USB3.0 TYPE port 2 x built-in 19 Pin USB 3.0 interface Transmission rate: 4 x 5.0Gbps/Port Power input: built-in SATA power supply Port voltage: Max 5V/900mA,Each USB3.0 port Operating temperature: 0 - 85 Relative humidity: 10% - 90% (non condensing) Storage temperature: - 20~80 Relative humidity: 5% - 90% (non condensing) Colour:black Material:PCB+metal Package Contents: 1 x PCIE X4 NEC720202 4-channel 8-port USB3.0 card 1 x Short baffle Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.