USB shine logo HUB 4 usb hub ports, 1.1 and 2.0 version for optional 1 blue light will on when connect with computer; USB shine logo HUB Function Specification 4 usb hub ports, 1.1 and 2.0 version for optional1 blue light will on when connect with computer; 2.0 version has insert device indicator display the connectiong versions optionalCan connect with U disc, MP3, and any digital deviceIt can ...