Feature:Imported Chip, high qualityName: PCI-E one turn four expansion cardBus interface: PCI-E X1 compatible with X4, X8, X16 slotInterface type: PCIE to 4-port USB 3.0Product size: 120mm bracket length *67mm*57mmSupport system: DOS, Linux, Windows XP7810Effectively solve the motherboard PCI-E interface is not enough, an interface can be extended out of 4;The use of plug-in design, not through the extension line directly inserted into the motherboard interface, and can be fixed to the chassis, stability and reliability greatly improvedThe main control panel uses PCI-E interface direct power supply mode, and no external power line is needed, so that the main board power is free from external interference, and the stability is higherReduce the number of adapter and transfer line, one line directly to the interface, effectively reduce the interface interference and wire loss, to ensure data reliability, so as to improve work efficiency Package List:1 X PCI-E to 4 USB 3.0 Converter Card