Interface: USB1.1 or USB 2.0;
Support high speed 480Mpbs,fully speed 12Mpbs,low speed 1.5Mpbs;
Plug & play, no need driver;
Power control and overload detection for each individual USB port;
Compatible with all USB devices: MP3,MP4,Camera;
Single or multi-color LED show;
Flower and LOGO can be printed around the circle, for promotion gift;
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