Mô tả sản phẩm: Ugreen 20280 4 Ports USB 3.0 OTG HUB with Cradle, is a perfect combination of USB hub and USB charging, which is an ideal choice for office, family, travel, hotel, education etc. It is with portable size, and has the following 4 functions. 1). 4 Ports USB 3.0 Hub; Transfer rates of up to 5Gbps- 10X faster than USB 2.0; 2). OTG (your devices need to support OTG function) Connect the Micro USB port to your device, it works as an OTG hub. you could connect flash drive, mouse, keyboard to your OTG devices. 3). Cradle Design; you could set your phones or tablest here when charging or data transfer. 4).4 Ports USB Charging Sattion, totally 5V,3A. When Connect to power adapter, it is a 4-ports Charging Station,could charge your mobile or tablet etc.