Speaker car
Fully Compliant with universal serial bus specification version 1.1 compatible usb 2.0;Single Chip integrated USB hub controller with embedded proprietary; Support four us-powered/self-powered downstream ports; Built-in 3.3V voltage regulator allows single 5v operating voltage, resulting in reduced overall system cost;Support OS: Window XP/2000/ME/98/Linux2.4/MAC OS 8.5 or over version.
