Slim design, mini size Input interface:USB3.1 Type-C Interface Output interface:4-port USB 3.1 Backward compatible with USB 1.0 / 2.0 / 1.2 The data transmission rate can reach USB 3.1 10Gbps USB3.1 output terminal of the four USB2.0 HDD / phone / U disk source interface connection with OTG function Gaming Notebooks,and other devices with a USB3.1 Type C port . Size:60*20*20mm Package Included: 1x USB Hub Note: 1. Please Allow 1-3cm Differs Due To Manual Measurement. 2. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. Please refer to the actual product.Thanks For Your Understanding.