Features: Comes with 4 power modules, 4 independent insurance, 4 solid capacitors, 2 19Pin USB3.0 interfaces on the board. 2 x 19-pin USB3.0 connectors: Allows you to extend 4 USB 3.0 ports to your desktop using the two internal 19-pin USB3.0 ports. High quality master IC: advanced technology, low heat, fast and stable operation, perfect welding, excellent workmanship, uniform layout, neat, to maximize interference and greatly improve stability. 4 Independent insurance: Each interface is equipped with independent protection insurance. When the external USB device is shorted and the current is too high, the power can be cut off instantly to protect the devices and computer from damage. Once the fault is cleared, the system automatically returns to normal. 4 solid capacitors: Each interface is equipped with an independent regulator capacitor to ensure smooth power supply to each interface. And the capacitors using semiconductor chip can withstand 250 high temperature. Super power module: Each USB 3.0 interface is equipped with an independent power module, and each interface is exclusively provided with 2A power supply, a total of 8A power supply. Besides, the inductor adopts 12mm*12mm closed superpower inductors. High-quality baffle: The high-quality fixed baffle is used to fix the expansion card on the chassis. And these baffles, treated with bending hardening on both sides, can withstand greater force. Gold-plated PCI-E x1 interface: Thick gold-plated PCI-E interface for more stable contact and transmission. Not subject to data distortion. Specifications: Number of interfaces: 1*PCI-E x1, 2*19pin USB3.0 connector Transfer speed: up to 5Gbps Current: 2A for each USB port System: winXP, win7, win8, win8.1, win10 Applicable slot: for PCI-E X1 X4 X8 X16 slot Low baffle length: 8cm Product size: approx. 12cm (baffle) * 9cm * 6.9cm Package Weight: 113g Package List: 1 x PCI-E to 2-Port 19Pin USB3.0 Card Adapter 1 x Low Profile Baffle 1 x CD 1 x Screw Note: 1. Due to manual measurement, please allow 1-3mm error, thank you. 2. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.