Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Description: This4portsUSB3.0hubisahigh-performancealuminumcontrolchipUSBhub. ItcanexpandfourUSBportsonthecomputer，andsupportfourUSBhigh-speeddevicessimultaneously. IthelpsyoutosolvetheproblemwhentheUSBportonyourcomputerisnotenough，canbringgreatconveniencetoyou. Features: Plugandplay，easytoinstall. ReasonableUSBinterfacelayout，cansupportfourUSBhigh-speeddevicessimultaneously. USB3.0，10xfasterthanUSB2.0，upto5Gbpstransferrate. CompatiblewithUSB2.0and1.1specifications. Supportoverloadvoltageandinter-currentprotectionfunction. ProtecttheconnectedequipmentandHUBitselfeffectivelywhensuddenlyenergized. Ergonomicslantinterfacedesign，humanizedtechnologyconsiderations. Stableperformance，durableandreliable. Specifications: Color:Silver. Material:aluminumalloyshell. Systemrequirements:WindowsXP/Vista/7/8andMacOS. Bus-PowerlimitCurrentProtection:900mA(Whenexternaladapterapplied) Size:9.8x5.5x2.7cm/3.86”x2.17”x1.06”(LxWxH)app. Condition:100%brandnewandunused Packageinclude: 1xUSB3.04-PortAluminumHub