When life calls for more the Lenovo USB-C 1-to-4 Hub helps you expand your potential by adding four additional USB-A devices with a single USB-C hub. Storage keyboards mice optical drives whatever you need you can connect it to your USB-C-enabled notebook or PC with ease. The hub is ultra-compact and weighs just 42 grams too so you can keep it ready and waiting in your pocket or carry case at all times. Note: Depending on many factors such as the processing capability of the host and peripheral devices file attributes and other factors related to system configuration and operating environments the actual data transfer rate may be slower than advertised. For example you may experience 5 Gbit/s on USB 3.1 Gen 1 (USB 3.0) connectors slower than 10 Gbit/s on USB 3.1 Gen 2 connectors and slower than 20Gbit/s on USB 3.2 connectors.