Extend the notebook USB-A to 4 ports (4 USB 2.0 ports), don't worry about the limited ports.[High-speed transmission] The theoretical speed of USB2.0*4 is 480Mbps. There are 4 USB2.0 ports as standard, which can meet your multi-port expansion needs.[Ultra-compact and lightweight] 4-port USB hub is made of high-quality aluminum, sturdy and durable with good heat dissipation. And you want to save space, even at home, it looks great and tidy, with fewer connections, which is also helpful when moving a laptop. Very suitable for family, office and business travel.Connect 4 USB peripheral devices to your computer and save desktop space. This 4-port hub is backward compatible with USB 1.1/1.0 devices.Widely compatible, plug and play, no need for additional drivers.Product name: USB A hubModel: J-HB003MInterface: 4*USB2.0Port 1-4: USB-A 2.0, 480Mbps/ USB2.0; 12Mbps/ USB1.1; backward compatible to USB 2.0 and USB 1.1Colour: grayMaterial: aluminum alloy + PVCSize: 105.5x20.4x7.9 mmPackage Contents:1 * 4 in 1 USB A hubOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.