Lenovo USB-C to 4 Port USB-A Hub - Gray 4X90X21427 Key Details Connect USB drivers, keyboard, mice, external DVD burners to USB-C notebooks all together Input: USB-C Male , Output: 4 * USB-A Female (USB3.0), Data rate 5Gbps Cable length: 100mm (4'') , Hub dimension: 95mm * 35mm * 12.5mm (3.7'' * 1.4'' * 0.5'')