Features:1. Blue Led Indicator & Individual On/off Switches.2. Usb Hub Show Your Work Status Anytime. Non-slip Design, Easy Slide On/off Switch. Led Indicators Display Power Status For Each Port.3. 4 Port Usb 3.0 Hub,suit For Hdd/ssd, U-disk, Mouse, Keyboard. Expands Your Computer& 39;s Capability With 4 Usb 3.0 Ports; Sync Data And Charge Your Devices Simultaneously.4. Powered Via Micro Usb Port. Easily Support Your Hard Drive. Note: Package Not Include Micro Usb Cable.5. Usb 3.0 Hub,super Speed Data Transfer. Usb 3.0 Hub Backward Compatibility Usb 2.0/usb 1.0. Usb 3.0: 5gbps. Usb 2.0: 480mbps.6.perfectly Portable,slim And Light Design Makes It Easily Portable And Saves Desktop Space.specification:type: 4-port Usb 3.0 Hubmaterial: Absquantity: 1pcitem Color: Blackport: Usb3.0*4 Portswitch: One Switch For Each Port, With Indicator Lightcable Length: 150 Mm/5.9item Size: 108*45*14mm/4.2*1.8*0.5 (l*w*h)net Weight: 58g/2.1ozpackage: 1* 4-port Usb 3.0 Hub