Specifications: Model: SH-016FXQ Material ABSandTPE wire Size: 66.8x23.2mm Weight: 58g Support system: MACOS or Windows7 or 8 or 10 etc Input terminal: USB2.0 Output terminal: USB2.0x4 Line length: 1000mm Features: -High-speed chip, fast transmission and stable reading. -No need to drive, plug and play. -Support four simultaneous use. -Using 28 or 24AWG thick copper core, plus aluminum foil and other multilayer protection data. -The main board adopts ABS double-layer panel, the keyboard and mouse transmission response is faster, sensitive and no delay. Package Included: 1 X USB Hub Note: -The color of the item may vary slightly due to photography and different PC monitor. -The size might be slightly different due to manual measurement. Your kindly understanding would be appreciated. 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.