Features:1. Blue Led Indicator and Individual On or off Switches.2. Usb Hub Show Your Work Status Anytime. Non-slip Design, Easy Slide On or off Switch. Led Indicators Display Power Status For Each Port.3. 4 Port Usb 3.0 Hub,suit For Hdd or ssd, U-disk, Mouse, Keyboard. Expands Your Computerand 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 or 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: Usb3.0x4 Portswitch: One Switch For Each Port, With Indicator Lightcable Length: 150 Mm or 5.9item Size: 108x45x14mm or 4.2x1.8x0.5 (lxwxh)net Weight: 58g or 2.1ozpackage: 1x 4-port Usb 3.0 Hub Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.