Best Kootion Bluetooth Keyboards

Specifications: Item Standard:USB 3.0*3,SD card reader*1,TF card reader*1 Operate Speed:up to 5Gbps Cable Lenght:5inch Item Dimensions:3.5*1.57*0.4inch Item Weight:40g Ultra-Slim&Portable 4-in-1 USB 3.0 Port HUB ,ultra-compact size,great for laptops which come with only a few ports, connect to your devices such as a mouse, keyboard, card reader, cell phone or eternal hard drive, etc. Full 5Gbps on each port is convenient access to high-speed USB 3.0 connections and save your time. Special Desigh:Blue LED Lights up when plugged in. Package Contents 1*HUB 1*HUB manual Pay Attention The SD and Micro SD card port cannot be used at the same time.